Dietitian Video Statistics

Key takeaways

1. Dietitians’ and registered nutritionists’ channels posted 27.2% of YouTube’s 584 most-viewed ‘dietitian’, ‘what I eat in a day’ and ‘meal prep’ videos and drew 18.7% of their views, 7.9% without the biggest such channel; dietitians tied to the U.S. drew 6.0% (our read, Nov 2026). (Mark Studios) See details
2. In the ‘what I eat in a day’ and ‘meal prep’ results alone, dietitians drew 0.7% of views. Lifestyle and food-diary creators drew 38.7% of all views in the sample, and videos of 60 seconds or less drew 71.8%. (Mark Studios) See details
3. Original Medicare allowed 465,158 medical nutrition therapy services in 2024, down from 521,073 in 2019; 99.9% of the billers in CMS’s provider-level file were registered dietitians or nutrition professionals (our calculation from CMS data). (CMS, Mark Studios) See details
4. Employers had 77,570 wage and salary dietitians and nutritionists in May 2025, at a median annual wage of $76,400, 49.9% above the median for all occupations; BLS estimates that 8.5% of dietitian and nutritionist jobs are held by the self-employed. (BLS) See details
5. Florida had 8,199 dietitian/nutritionist licences in a practicing status on November 5, 2026: 646 in Broward, 488 in Palm Beach and 62 in Martin County; 29.1% of active licences at mid-2026 belonged to holders with an out-of-state address (our count). (Florida DOH, Mark Studios) See details
6. A 2025 TikTok study rated 36% of nutrition posts completely accurate; an Australian Instagram study found 44.7% of nutrition posts inaccurate, with posts by nutritionists or dietitians at 4.69 times the odds of higher accuracy. (Nutrients, IJBNPA) See details
7. Medicare covers 3 hours of medical nutrition therapy in the first year and 2 hours a year after, for diabetes and kidney disease; CMS says telehealth visits from home stay covered through December 31, 2027. (CMS) See details
8. The ‘8 x 8’ water rule has no study behind it, by Valtin’s 2002 review; the National Academies set adequate total water intake, from food and drink, at 3.7 L a day for men. (American Journal of Physiology, National Academies) See details

Who makes the most-viewed dietitian and diet videos on YouTube?

Dietitians and registered nutritionists drew 18.7% of the views of the most-viewed dietitian, 'what I eat in a day' and meal-prep videos on YouTube on November 5, 2026, and almost all of it came from searches for the word dietitian (our count). We read YouTube's own view-sorted search results, the top 200 for each of the three searches, through the YouTube Data API, with no country filter. The three lists held 584 unique videos from 276 channels, and the median video had 2,700,470.5 lifetime views (our count). We sorted every channel by hand from its own title, description and video text. A dietitian here is any channel whose own text calls its owner a dietitian or dietician (registered dietitian, RD, RDN, Japan's kanri eiyoshi, Poland's dietetyk kliniczny) or a registered nutritionist, anywhere in the world; 18 channels qualified. They posted 27.2% of the videos.

One channel carries most of that reach. DietTube India, run by a dietetics graduate who lists membership of the Indian Dietetics Association, held 62.8% of the dietitians' views with 120 short videos. Without it, dietitians drew 7.9% of the remaining views (our calculation). The 13 channels whose own description or video text calls the owner a dietitian or registered nutritionist, not only a title, a hashtag or a past job, drew 5.0% of all views; DietTube India signs its titles 'Dt.' but its description calls its owner a nutritionist with a dietetics degree. All 18 dietitians' channels and the nutritionists and nutrition coaches without a dietitian credential together drew 20.4%. Those uncredentialed nutritionists and coaches, from 7 channels, drew 1.7% on their own, and physicians' channels 1.0%.

Do dietitians reach people searching 'what I eat in a day' or 'meal prep'?

Barely: in YouTube's most-viewed results for 'what I eat in a day' and 'meal prep' on November 5, 2026, dietitians' channels drew 0.7% of the views (our count). Those two searches returned 397 unique videos with 2,408.5 million lifetime views, and 6 of them came from dietitians. None of the 200 'what I eat in a day' results came from a dietitian's channel; lifestyle, vlog and food-diary creators drew 83.2% of that list's views. In the 'meal prep' list, cooking and recipe creators drew 42.4% of the views and fitness creators 30.3%, against 1.5% for dietitians (our count).

Searching the word itself gives the reverse picture. In the 200 most-viewed results for 'dietitian', dietitians' own channels drew 77.6% of the views, and DietTube India alone 49.7% (our count). Other channels use the title too: news channels, podcasts, comedy studios, grocery and meal-delivery brands, an NFL team and physicians put the word dietitian or dietician in the titles of 20 of the 'dietitian' results.

How much of that reach comes from U.S. dietitians?

Dietitians whose channel country is set to the United States, or whose own text ties them to a U.S. place, drew 6.0% of the views of all 584 videos on November 5, 2026, from 4.8% of the videos (our count). That is 9 of the 18 dietitians' channels, and only 2 of them name a U.S. place in their own text (both through local U.S. television appearances); the rest are counted by their country setting. In the 'dietitian' search alone, U.S.-set dietitians drew 24.3% of the views, while three dietitians' channels set to India drew 50.8% (our count). Across the whole sample those three Indian channels drew 12.0% of the views.

Channels of every kind set to India posted 42.3% of the videos and drew 31.3% of the views; channels set to the United States posted 21.9% of the videos and drew 34.6% of the views (our count). 121 videos came from channels with no country set.

Which kinds of channels drew the views?

Lifestyle, vlog and food-diary creators drew 38.7% of the views of the 584 videos on November 5, 2026, more than any other kind of channel, from 126 of the 276 channels (our count). The ten biggest channels drew 41.9% of all views.

The source is our hand classification of all 276 channels (our count, YouTube Data API, November 5, 2026). The median dietitian's channel had 149,000 subscribers, against 1,085,000 for fitness creators, and 117 of the 276 channels had 1 million or more (our count from channels.list on the same day). The median dietitian's video had 1,703,318 lifetime views.

How long are the most-viewed diet videos, and what are they about?

Videos of 60 seconds or less made up 61.0% of the 584 videos on November 5, 2026 and drew 71.8% of their views (our count). Dietitians leaned shorter still: 73.6% of their videos ran 60 seconds or less. The sample is recent: 55.3% of the videos were published in 2025 or 2026.

Titles show what the views go to. 35.8% of the videos were titled as a day or meal of eating, and 31.2% mentioned meal prep (our count, regex on titles). 14.4% mentioned protein or macros, 5.3% weight loss, fat loss or calorie cutting, 3.9% a budget or a price, and 0.9% groceries, a haul or a named store. GLP-1 drugs such as Ozempic or Wegovy appeared in no title and in the description or tags of 1 video. Among the 159 dietitians' videos, 17 mentioned protein in the title and 15 had a myth, 'versus', 'worst' or 'don't eat' title. 9 food-diary videos came from three channels that describe eating-disorder recovery or binge eating. YouTube's altered or synthetic content field was absent from all 584 videos, and none was marked made for kids (our read of videos.list part=status).

How much do the Academy and telehealth nutrition sellers post on YouTube?

The Academy of Nutrition and Dietetics' channel, Eat Right, posted one video in the year to November 5, 2026 and had 5,810 subscribers (our read of the YouTube Data API). Its 123 public videos had 2,521,613 lifetime views in all; the one recent upload, from March 2026, had 1,515,874 of them. Three telehealth nutrition sellers that bill insurance for dietitian visits, Fay, Berry Street and Nourish, posted 167 videos in the same year, with a median of 854 views, and 96.4% of those uploads ran 60 seconds or less. Fay posted 77 with a median of 920 views and Berry Street 89 with a median of 507. Nourish's channel had 1,100 subscribers but 54,107,877 lifetime views on its 8 public videos. The practice-software seller Healthie posted 5 videos in the year, with a median of 37 views.

None of these organisation channels had a video among the 584 most-viewed results (our count). USDA's MyPlate could not be matched to a confirmed channel: myplate.gov did not answer our requests, and the @myplate handle has no description and three uploads from 2009. Foodsmart's website links no YouTube channel.

How many dietitians moved nutrition care to telehealth?

In spring 2020, 78% of U.S. registered dietitian nutritionists (RDNs) surveyed by the Academy of Nutrition and Dietetics were giving nutrition care by telehealth, against 37% who said they had done so before the pandemic (Journal of the Academy of Nutrition and Dietetics). The Academy's own researchers ran the survey from mid-April to mid-May 2020; 2,016 RDNs who had seen clients face to face before COVID-19 answered it. Respondents were self-selected, so the shares describe those who answered, not every RDN.

• A telehealth session gave a median of 30 minutes of direct contact with the client or group.
• The most common barrier was lack of client interest, named by 29%; Internet access and the difficulty of doing a normal nutrition assessment at a distance were close behind.
• The most common benefit was helping with social distancing (66%), followed by scheduling flexibility.
• About half billed for telehealth, and of those, 61% said they were reimbursed sometimes or always.

Surveys outside the U.S. show the same jump. Among Swedish registered dietitians, 67% had video-consultation experience in 2021, against 16% in 2016 (Journal of Human Nutrition and Dietetics). In the 2021 survey, 69% said consultations that need a language interpreter were less suited to video. Telehealth use among 94 Lebanese licensed dietitians rose from 48.4% before COVID-19 to 97.8% during it, according to a March 2023 survey (PLOS ONE). Those dietitians mostly used WhatsApp (90.3%) and Zoom. In Saudi Arabia, 56% of 306 clinical RDNs surveyed between December 2022 and May 2023 had used telehealth during the pandemic (Online Journal of Public Health Informatics).

A 2018 meta-analysis pooled telehealth programmes for malnourished older adults living at home, most of them delivered by telephone. In the two studies that measured protein, intake rose by 0.13 g/kg body weight per day compared with usual care or no intervention; the review graded that evidence as low certainty (Maturitas).

How many dietitians use social media for work?

A 2025 systematic review found that between 37.5% and 100% of registered nutritionists and dietitians used social media, across 10 questionnaire studies in nine countries published from 2019 to February 2024 (Nutrients). Instagram and Twitter were the platforms used most, mainly to share nutrition information, counselling content and to promote their practice. No U.S.-only figure was found for this page, so the national surveys below come from other countries.

• Finland: 58% of 107 registered dietitians surveyed from December 2022 to February 2023 used social media professionally, mostly to follow the field; 58% of those users watched YouTube for that purpose (Journal of Human Nutrition and Dietetics).
• Ten Arab countries: Instagram was the platform used most, by 51.7% of 2,542 dietitians surveyed from November 2020 to January 2021. Of those dietitians, 90.0% got no support from their workplace for social media, 80.0% saw more public interest in nutrition topics such as healthy recipes, and 58.2% said they were correcting nutrition myths, up from 51.4% before the pandemic (Frontiers in Public Health).
• Australia (an older baseline): 87.3% of 340 dietitians surveyed said their main social media effort was keeping it professional; lack of time and not knowing where to start were each named by 18.6% (Nutrition & Dietetics).

Dietitians who blog have their own guidance. An e-Delphi panel of 19 dietitian bloggers from the U.S., Australia and the U.K. agreed 33 statements in 2019, published as the P.O.S.T Guidelines for Nutrition Blogs (Journal of the Academy of Nutrition and Dietetics).

What do studies find about sponsored nutrition content?

Product endorsements or advertisements were the most common type of post (56.3%) in 1,420 Instagram posts from 71 health and nutrition creators followed by young Australian adults, and laypersons posted most of them (Nutrients). When Australian researchers scored 500 Instagram posts by nutritionists and dietitians against a professional checklist, they found gaps in financial disclosure and transparent advertising (Health Promotion International). In interviews with 18 registered dietitians in Quebec, every one reported dealing with food or pharmaceutical companies during their career, for example through sponsored continuing education (Public Health Nutrition). The FTC's 2023 warning letters to registered dietitians and other health influencers are covered on our fitness video statistics page.

Can dietitians get YouTube's health source label?

Individual U.S. health creators have been able to apply for YouTube's health source information panels since October 27th, 2022. Before that, the label went only to organisations such as hospitals and public health departments (YouTube Official Blog). The current eligibility list names licensed doctors, nurses, psychologists, marriage and family therapists and clinical social workers; dietitians are not on it (YouTube Help). Channels must also pass a viewing bar: more than 1,500 valid public watch hours in the last 12 months, or 1.5 million Shorts views in 90 days (YouTube Help).

What do trials of video nutrition education measure?

Most trials of video nutrition education are small, and few test videos made by dietitians. These are the results found for this page:

How many licensed dietitians and nutritionists are there in Florida?

Florida had 5,574 in-state active dietitian/nutritionist licences on June 30, 2026, the end of fiscal year 2025-26, by the count of the Florida Department of Health's Division of Medical Quality Assurance (MQA) (Florida DOH MQA annual report). Another 2,284 active licences belonged to licensees with an out-of-state address, and the count across every status (active, inactive, delinquent, military and retired) was 9,218. These are licences, not people at work: a licensee can hold a Florida licence and live and practise elsewhere.

A search of MQA's public licence lookup on November 5, 2026 found 8,199 dietitian/nutritionist licences in a practicing status (Clear, Military, Obligations or Probation) (our count), out of 15,287 current and former licence records in the search, so 53.6% were practicing (our calculation). The search and the annual report count on different dates and with different status rules, so the two totals do not match.

The count is growing, and more of it sits outside Florida. Licences in all statuses rose 39.8% from fiscal year 2020-21 to 2025-26 (our calculation), from 6,596 to 9,218. Active licences at out-of-state addresses rose 2.7-fold over the same years (our calculation), from 831 to 2,284, so 29.1% of active licences were held at out-of-state addresses in 2025-26, up from 14.0% in 2020-21 (our calculation). MQA issued 783 initial licences in fiscal year 2025-26 (Florida DOH MQA Table 4) and 5,244 over the six fiscal years from 2020-21 to 2025-26 (our sum).

Source: Florida DOH MQA Annual Report and Long-Range Plan, Table 1 and Table 4, each fiscal year FY 2020-21, FY 2021-22, FY 2022-23, FY 2023-24, FY 2024-25, FY 2025-26. Florida licenses dietitians/nutritionists through the Dietetics and Nutrition Practice Council; licences renew every two years, so active and delinquent counts move with the renewal cycle.

Florida's separate nutrition counselor licence is small and shrinking: 72 licences in all statuses at the end of fiscal year 2025-26, against 97 in 2020-21 (Florida DOH MQA Table 1). The public search showed 36 in a practicing status on November 5, 2026 (our count).

How many out-of-state dietitians are registered to see Florida patients by telehealth?

Florida's licence search listed 3,427 out-of-state telehealth registrations for dietitians/nutritionists in a practicing status on November 5, 2026 (our count). A registration lets a provider licensed in another state give telehealth to patients in Florida without a Florida licence. Telehealth registrations made up 29.5% of the 11,626 practicing dietitian/nutritionist licences and registrations combined (our calculation). Across every health profession, MQA counted 40,327 out-of-state telehealth registrations at the end of fiscal year 2025-26 (Florida DOH MQA Table 1); its annual report does not split that figure by profession.

How many dietitians are licensed in Palm Beach, Broward and Martin counties?

Broward County had 646 dietitian/nutritionist licences in a practicing status on November 5, 2026, Palm Beach County had 488 and Martin County had 62 (our count of the Florida Department of Health licence search, one query per county). Together the three counties had 1,196, or 18.7% of the county-matched practicing licences in the state (our calculation). Miami-Dade had the most of any county, 742, followed by Broward, Hillsborough (490) and Palm Beach. 5 of Florida's 67 counties (Dixie, Glades, Hamilton, Liberty and Taylor) had none (our count).

Only 78.0% of practicing licences matched a Florida county (our calculation); the remainder is mainly licences with addresses outside Florida. The search's county filter is not documented and overlaps: on the first result page of each county search, 45 of 824 distinct licences appeared under two or more counties (our check), so a licence matched to two of the three counties counts twice in the combined figure. The full county list is in the Florida licence counts CSV (counts only).

How many licensed dietitians are there in New York, Washington, Connecticut and Delaware?

New York had 8,059 registered dietitian-nutritionist licensees on July 1, 2026, 6,001 with a New York mailing address and 2,033 with an address in another U.S. state, by the count of the State Education Department's Office of the Professions (NYSED Office of the Professions). That puts 25.5% outside New York State (our calculation). New York issued 773 dietitian-nutritionist licences in 2025, against 374 in 2021 (NYSED licence statistics), or 2.1 times as many (our calculation). NYSED notes that being registered does not mean the licensee is practising.

State open-data licence files give other states' counts on November 5, 2026 (our counts of each registry's file): Washington's Department of Health listed 5,757 active dietitian certifications and 418 active nutritionist certifications; Connecticut listed 2,056 active dietitian/nutritionist credentials, 59.8% of them at a Connecticut address; and Delaware listed 866 active dietitian/nutritionist licences plus 144 active interstate telehealth registrations, so telehealth registrations were 14.3% of the two combined (our calculation). Each state counts a different status on a different date, so the totals are not comparable and are not added up. The status breakdowns are in the state registry CSV.

How many accredited dietetics programs and credentialed practitioners are there?

ACEND, the Academy of Nutrition and Dietetics' accreditation agency, says it has more than 600 accredited programs across the United States and select other countries, in person and online (ACEND, Internet Archive copy, October 2026); the figure is ACEND's own rounded count across all program types. The Academy, the professional association, says it represents more than 112,000 credentialed practitioners, including registered dietitian nutritionists and nutrition and dietetics technicians, registered (Academy of Nutrition and Dietetics). That is the association's own representation claim, not a registry count: the Commission on Dietetic Registration (CDR), the Academy's credentialing agency, publishes the registry counts, and its website was not used here because its robots.txt file blocks the GPTBot AI crawler.

How many dietitians and nutritionists are there in the United States?

About 86.3 thousand dietitian and nutritionist jobs in 2025, by the Bureau of Labor Statistics' Employment Projections, which count wage and salary jobs and the self-employed together (BLS Employment Projections). The Occupational Outlook Handbook prints the same estimate as 86,300 jobs (BLS Occupational Outlook Handbook). BLS's survey of employers found 77,570 dietitians and nutritionists (SOC 29-1031) on employers' payrolls in May 2025 (BLS OEWS); that survey leaves out everyone who works for themselves. The Current Population Survey, a monthly household survey that counts people by their main job, found 136 thousand employed dietitians and nutritionists in 2025 (BLS Current Population Survey). In that survey people name their own occupation, so it may take in people with nutrition titles that employers classify differently.

None of these counts is a count of credentialed dietitians. SOC 29-1031 takes in registered dietitians (RD/RDN), state-licensed dietitians and nutritionists, and people with other nutrition jobs and titles; BLS does not split them. The credential and licence counts are in the registry section of this page.

Women held 91.7 percent of those jobs in 2025, by the same household survey (BLS Current Population Survey).

How many dietitians are self-employed?

A small share: BLS estimates that 8.5 percent of U.S. dietitian and nutritionist jobs were held by self-employed workers in 2025 (BLS Employment Projections). The Occupational Outlook Handbook rounds the self-employed share to 9 percent and puts it level with nursing and residential care facilities, which employed 9 percent (BLS Occupational Outlook Handbook). Most dietitians work for hospitals, care facilities, government and food-service employers rather than for themselves. No BLS wage figure on this page includes the self-employed, because BLS's wage survey covers only workers on a payroll.

What do dietitians and nutritionists earn?

The median wage and salary dietitian or nutritionist in the United States earned $76,400 a year in May 2025, by BLS's Occupational Employment and Wage Statistics survey (BLS OEWS). The mean was $77,130 (BLS OEWS). One in ten earned less than $49,090 a year (BLS OEWS) and one in ten more than $103,720 (BLS OEWS). The median for all U.S. occupations was $50,980 (BLS OEWS). The dietitian median was 49.9% higher (our calculation). These figures come from a survey of employers, so they say nothing about what self-employed dietitians earn.

Where do dietitians and nutritionists work?

Mostly in hospitals. BLS's Occupational Outlook Handbook says hospitals (state, local and private) employed 27 percent of dietitians and nutritionists in 2025 (BLS Occupational Outlook Handbook) and government, outside schools and hospitals, 11 percent (BLS Occupational Outlook Handbook). In BLS's May 2025 employer survey, general medical and surgical hospitals had 20,290 of them on payroll (BLS OEWS), special food services such as food service contractors 7,740 (BLS OEWS), offices of other health practitioners, the industry group that holds private dietitian practices, 6,980 (BLS OEWS), outpatient care centers 6,930 (BLS OEWS), skilled nursing facilities 5,930 (BLS OEWS), offices of physicians 3,860 (BLS OEWS) and the federal government, which includes VA medical centers, 2,790 (BLS OEWS). General medical and surgical hospitals alone held 26.2% of the occupation's payroll jobs (our calculation).

The setting changes the pay. The federal government paid the highest mean of the industries in the table below, $94,490 a year (BLS OEWS), and special food services the lowest, $73,670 (BLS OEWS). By BLS's medians, outpatient care centers paid $80,790, the most of the top industries the Handbook lists (BLS Occupational Outlook Handbook). Industry estimates rest on smaller samples than the national total, so small gaps are rough.

How many dietetic technicians are there?

U.S. employers had 31,560 wage and salary dietetic technicians (SOC 29-2051) on payroll in May 2025, by BLS's employer survey (BLS OEWS), at a median wage of $37,640 a year (BLS OEWS). General medical and surgical hospitals employed 12,030 of them (BLS OEWS). BLS's Employment Projections count 32.1 thousand dietetic technician jobs in 2025, self-employed included, and project 2.7 percent growth to 2035 (BLS Employment Projections). The occupation is separate from dietitians and nutritionists and is not limited to holders of the NDTR credential.

Which states have the most dietitians?

Among the states we checked, California had the most in BLS's May 2025 employer survey: 8,720 wage and salary dietitians and nutritionists (BLS OEWS). New York had 5,330 (BLS OEWS), Texas 5,320 (BLS OEWS) and Florida 4,370. We did not pull every state, so this is not a full ranking.

How many dietitians work in Florida, and what do they earn?

Florida employers had 4,370 wage and salary dietitians and nutritionists on payroll in May 2025, by BLS's Occupational Employment and Wage Statistics survey (BLS OEWS). That is 5.6% of the U.S. payroll total (our calculation). Their median wage was $76,050 a year (BLS OEWS), close to the national median of $76,400, and their mean $73,270 (BLS OEWS). The occupation is a slightly smaller part of Florida's workforce than the nation's: Florida's location quotient for it was 0.88 (BLS OEWS), meaning dietitians' share of Florida payroll jobs was 0.88 times their share of U.S. payroll jobs. Florida also had 2,420 dietetic technicians on payroll (BLS OEWS). Like the national payroll count, these figures leave out the self-employed.

BLS publishes no county figures for the occupation. The Miami-Fort Lauderdale-West Palm Beach metro area, which takes in Palm Beach, Broward and Miami-Dade counties, had 1,190 wage and salary dietitians and nutritionists in May 2025 (BLS OEWS), at a median of $79,750 a year (BLS OEWS), above the national median by 4.4% (our calculation). The Port St. Lucie metro area, which takes in Martin and St. Lucie counties, had 80 (BLS OEWS), at a median of $68,940 (BLS OEWS). Neither estimate was suppressed, but the Port St. Lucie figure rests on a very small sample.

What is the job outlook for dietitians?

BLS projects dietitian and nutritionist employment to grow 7.7 percent from 2025 to 2035, against 3.5 percent for all occupations (BLS Employment Projections), to 93.0 thousand jobs in 2035 (BLS Employment Projections). The Occupational Outlook Handbook rounds the rate to 8 percent and calls it much faster than the average (BLS Occupational Outlook Handbook); it ties the demand to the role of diet in preventing and controlling illnesses such as diabetes and heart disease, and to an aging population. BLS expects an average of 5.7 thousand openings a year over the decade (BLS Employment Projections); the openings figure counts new jobs plus jobs left open by workers who retire or move to other occupations. These are model projections, not counts. BLS still lists a bachelor's degree as the typical entry-level education for the occupation as a whole, while its Handbook notes that the RD/RDN credential now requires at least a master's degree.

Which industry code covers dietitian practices?

NAICS 621399, Offices of All Other Miscellaneous Health Practitioners, a shared code that also holds acupuncture, massage therapy and other practices (2022 NAICS Manual). The 2022 NAICS Manual defines it as independent health practitioners other than physicians, dentists, chiropractors, optometrists, mental health specialists, physical, occupational and speech therapists, audiologists and podiatrists, and lists dietitians' offices among its illustrative examples, with acupuncturists, midwives, hypnotherapists, dental hygienists, naturopaths, respiratory therapists, homeopaths, denturists and nurses. The manual's index files dietitians' offices (e.g., centers, clinics) under 621399 (2022 NAICS Manual) and nutritionists' offices under the same code, 621399 (2022 NAICS Manual). Non-medical diet and weight reducing centers are classified apart, in personal services, as NAICS 812191 (2022 NAICS Manual).

No federal business count isolates dietitian or nutrition practices, so every 621399 figure below describes the whole shared code and is shared context, not a count of dietitians. Dietitians who work for hospitals, nursing homes, physicians' offices or food-service contractors are counted in those industries instead.

How many businesses are in the shared code?

In NAICS 621399, the Bureau of Labor Statistics' Quarterly Census of Employment and Wages counted an average of 43,733 private establishments with employees in 2025 (BLS QCEW), up from 18,575 in 2015 (BLS QCEW). Those establishments employed an average of 174,667 people in 2025 (BLS QCEW) at an average annual pay of $63,615 (BLS QCEW). QCEW counts only workplaces with jobs covered by unemployment insurance.

The Census Bureau's own counts of the same code are lower. County Business Patterns counted 36,107 establishments with paid employees in 2023 (Census County Business Patterns), and the 2022 Economic Census counted 32,609 employer establishments (Census Economic Census). The counts differ in source, timing and definition, so they should not be read as a trend.

How many businesses in the code have no employees?

259,850 in 2024, far more than the code's employer establishments: that is the Census Bureau's Nonemployer Statistics count of businesses with no paid employees in NAICS 621399 (Census Nonemployer Statistics), with $12,892,829 thousand in receipts (Census Nonemployer Statistics). A nonemployer business is a tax filer, not a storefront, so a self-employed dietitian who sees clients online or in a rented room counts if she files as a business. The count also takes in the acupuncturists, massage therapists, hypnotherapists and other practitioners who share the code, so it is not a count of dietitians.

Does the Economic Census count nutrition counselling?

No. Health care businesses report receipts by the patient's primary diagnosis rather than by the service given, and none of the product lines the 2022 Economic Census published for NAICS 621399 names nutrition counselling, medical nutrition therapy or diet services. The closest line is a diagnosis chapter: patients with endocrine, nutritional and metabolic diagnoses, which include diabetes and obesity, made up 8.1 percent of 2022 receipts for employer establishments in the code (Census Economic Census). That share covers every practitioner type in the shared code who treated those patients, not only dietitians.

How many businesses in the code are in Florida and in Palm Beach, Broward and Martin counties?

Florida averaged 4,473 private establishments with employees in the shared code NAICS 621399 in 2025, by BLS's Quarterly Census of Employment and Wages (BLS QCEW). Census's County Business Patterns counted 3,956 Florida establishments with paid employees in the code in 2023 (Census County Business Patterns). Businesses with no employees are far more numerous: Nonemployer Statistics counted 29,607 in Florida in 2024 (Census Nonemployer Statistics).

The county counts cover the whole shared code, so they include acupuncture and massage therapy offices, hypnotherapists and other practitioners as well as dietitian and nutrition practices.

How much medical nutrition therapy does Medicare pay for?

Original Medicare Part B allowed 465,158 medical nutrition therapy (MNT) services in 2024, counting CPT 97802, 97803 and 97804 and HCPCS G0270 and G0271 in office and facility settings (our calculation from CMS's Physician & Other Practitioners by Geography and Service file). That is 10.7% fewer than the 521,073 services allowed in 2019 (our calculation). A service here is a 15- or 30-minute unit, not a visit.

Multiplying CMS's average Medicare payment per service by the number of services, Original Medicare paid about $13.1 million for MNT in 2024, down from about $15.3 million in 2019 (our calculation). For MNT the average allowed amount and the average Medicare payment are the same: in 2024 both were $30.62 for an initial 15-minute unit in the office setting (CMS), because Part B waives coinsurance and the deductible for this benefit. The 2019 payment for the same unit was $31.78 (CMS 2019 file), a nominal drop of 3.6% (our calculation). 97.6% of 2024 MNT services were billed in the office (non-facility) setting (our calculation). The geography file has no telehealth flag, so it cannot say how many of these units were delivered by video.

These files count only Original Medicare fee-for-service claims. They leave out Medicare Advantage enrollees, hospital outpatient institutional claims, VA, TRICARE, Medicaid and private insurance. CMS also drops any aggregated record built from 10 or fewer beneficiaries (CMS methodology), so small state, setting and provider rows are missing and sums understate the true Part B total.

The facility setting added 5,351 initial-assessment units (CMS) and 5,578 reassessment units (CMS) in 2024. Beneficiaries with an initial assessment averaged 4.0 fifteen-minute units in 2024, about an hour, and those with a reassessment averaged 4.4 units (our calculation).

How has Medicare medical nutrition therapy changed since 2019?

More providers bill MNT, but each sees fewer Medicare patients. Providers billing an initial assessment (CPT 97802) in the office setting rose 26.7% from 3,446 in 2019 (CMS 2019 file) to 4,365 in 2024 (our calculation), while beneficiaries receiving one fell 10.4% from 54,057 (CMS 2019 file) (our calculation). That works out to 11.1 beneficiaries per provider in 2024, down from 15.7 in 2019 (our calculation).

Reassessment units (CPT 97803) were 206,598 in 2019, billed by 3,200 office-setting providers (CMS 2019 file). The code for reassessment after a change in diagnosis, G0270, grew fastest in provider terms: 390 office-setting billers in 2019 (CMS 2019 file) and 846 in 2024, a 2.2-fold rise (our calculation), while its units went from 79,668 (CMS 2019 file) to 78,627.9.

Who bills Medicare for medical nutrition therapy?

Almost only registered dietitians and nutrition professionals. In CMS's 2024 Physician & Other Practitioners by Provider and Service file, 1,561 individual providers had MNT records large enough to be published, up from 1,400 in 2020 (our count), and 99.9% of them carried CMS's provider type "Registered Dietitian or Nutrition Professional" (our count). The single exception in 2024 was an internal medicine physician. In 2020, 1,399 of 1,400 were dietitians and the other was an endocrinologist (our count). That provider-level file covers 73% of the national MNT units in the geography file (our calculation); the rest come from billers with 10 or fewer beneficiaries for a code, which the geography file's 4,365 initial-assessment billers show is most providers.

Dietitians who bill Medicare at all form a small group. CMS's by-provider file for 2024 lists 2,169 providers of type Registered Dietitian or Nutrition Professional nationwide (CMS 2024 by-provider file), against 2,192 in 2019 (CMS 2019 by-provider file); both counts leave out dietitians with 10 or fewer Medicare patients in the year. Enrolment is wider than billing: CMS's Public Provider Enrollment file dated 1 October 2026 holds 13,044 enrolment records with provider type 14-71, Registered Dietitian or Nutrition Professional (CMS PPEF), against 13,183 in the January 2026 file (CMS PPEF January 2026). A dietitian enrolled in more than one state can appear more than once, and enrolment does not mean the person billed Medicare.

How much Medicare nutrition therapy happens in Florida and South Florida?

Florida providers billed 21,754 Medicare MNT units in the office setting in 2024 (CPT 97802-97804 and G0270; our calculation). CMS publishes no Florida facility rows or G0271 rows for these years because each would come from 10 or fewer beneficiaries. Florida's share of national initial-assessment units was 5.5% (our calculation), and its initial-assessment units fell 31.3% between 2019 and 2024 (our calculation).

The average Medicare payment for a Florida initial-assessment unit was $29.94 in 2024 (CMS), and Florida beneficiaries averaged 4.4 such units each (our calculation). CMS's 2024 by-provider file lists 77 Florida providers of the dietitian type (CMS 2024 by-provider file), against 92 in 2019 (CMS 2019 by-provider file). Florida's October 2026 enrolment file count is 482 dietitian enrolment records (CMS PPEF), up from 449 in January 2026 (CMS PPEF January 2026).

In the provider-level MNT file, 66 Florida providers had published MNT records in 2024, all of them registered dietitians or nutrition professionals (our count). By ZIP code, 11 were in Palm Beach County, 5 in Broward and 1 in Martin (our count using the Census ZIP-to-county relationship file), so the three counties held 17 of the 66 (our count). Dietitians with 10 or fewer Medicare MNT patients for a code are not in these counts.

How many Medicare Diabetes Prevention Program sites are there?

CMS's Medicare Diabetes Prevention Program (MDPP) supplier file dated 1 February 2026 lists 669 administrative locations (CMS MDPP file) and 368 community-setting class locations (CMS MDPP file) nationwide. These are locations, not unique suppliers or patients, and MDPP is a lifestyle-change programme run by trained coaches, separate from the dietitian-delivered MNT benefit.

How often do public companies' annual reports mention dietitians?

Rarely, and the number has barely moved in 25 years. 14 Form 10-K annual reports filed with the SEC in 2025 contained "dietitian" or "dietitians", against a peak of 21 in 2023 (our count). Over 2001-2025 the total was 347 filings, between 9 and 21 a year (our count). They came from 80 different companies; Healthcare Services Group, which runs dietary departments for nursing homes, filed the most (25), then Brookdale Senior Living (20) and Medifast (19) (our count). We counted distinct 10-K filings per filing year with the SEC's EDGAR full-text search on 2026-11-05. The counts are filings, not companies or mentions, and a passing mention in a risk factor or a benefits exhibit counts the same as a business description. Private companies and foreign issuers that file a 20-F file no 10-K. The yearly counts and the filer list are in the CSVs linked below.

The fall in insurer mentions says nothing about coverage on its own; health plans moved benefit descriptions out of their 10-K text. Several of the recent "nutrition counseling" hits come from banks, apparently in employee-benefits text; we did not read every hit. Searches by company name found no 10-K filed in 2020-2025 by Kroger, Albertsons, Sprouts Farmers Market, Herbalife, Teladoc or Hims & Hers that used the word "dietitian".

What does WeightWatchers disclose about its registered dietitians?

WW International began offering all of its U.S. members access to registered dietitians for personalized nutrition counseling in December 2024 (WW International 10-K, fiscal 2024). Its fiscal 2025 report describes the dietitians as licensed professionals whom members can book for individual visits for nutrition guidance and personalized meal planning, paid as an add-on (WW International 10-K, fiscal 2025). It does not say how many registered dietitians it employs or contracts, or how many visits members booked.

• Group workshops run 15 to 45 minutes, in the app or in person, and are led by doctors, registered dietitians or Weight Watchers-trained coaches (WW 10-K, fiscal 2025).
• The base Core subscription included 12,000+ recipes and on-demand fitness videos, with dietitians as an add-on (WW 10-K, fiscal 2025). The filing gives no count of videos or views.
• Med+, the telehealth tier that can prescribe GLP-1 medications, pairs members with a board-certified clinician, registered dietitians and a care coordinator (WW 10-K, fiscal 2025). WW had approximately 130.2 thousand Clinical subscribers at the end of fiscal 2025 (WW 10-K, fiscal 2025), up from approximately 0.1 million a year earlier (WW 10-K, fiscal 2024), and approximately 2.6 million Behavioral subscribers worldwide (WW 10-K, fiscal 2025).
• WW built the clinical tier on Sequence, a telehealth weight-management platform with clinicians, dietitians and fitness coaches, which it agreed in 2023 to buy for $132,000 thousand (WW 10-K, fiscal 2025, acquisition note).

WW's marketing expenses were $116.7 million for June 25 to December 31, 2025 and $110.9 million for the first part of the year, against $236.5 million in fiscal 2024 (WW 10-K, fiscal 2025). The year is split because WW filed for Chapter 11 in May 2025 and emerged on June 24, 2025 (WW 10-K, fiscal 2025). WW says the spending pays for producing advertising and for media on television (linear and digital streaming), social media, search and programmatic channels (WW 10-K, fiscal 2025), without a split by channel. In fiscal 2024 marketing fell $1.9 million, which WW put down to lower spending on agency fees and TV advertising and production, partly offset by more online advertising (WW 10-K, fiscal 2024).

What do meal-plan companies say about dietitians and coaches?

They lean on dietitians in product claims and on non-dietitian coaches for selling. Medifast says its OPTAVIA plans and products were developed by physicians and dietitians and have impacted more than 3 million lives, a company claim with no stated counting method (Medifast 10-K, fiscal 2025). Its 2025 report also says most of its independent coaches do not have extensive training or certification in nutrition, diet or health fields (Medifast 10-K, fiscal 2025). Medifast had 16,100 active earning coaches in the fourth quarter of 2025, about 40.6% fewer than a year earlier, and attributed the fall partly to the rapid adoption of GLP-1 medications (Medifast 10-K, fiscal 2025). Ten years earlier it had 11,900 active Health Coaches (Medifast 10-K, fiscal 2015) and described a nutrition support team of registered dietitians and a behavioral specialist answering clients by phone and email (Medifast 10-K, fiscal 2015).

Nutrisystem offered unlimited counseling from weight loss counselors, registered dietitians and certified diabetes educators at no cost, seven days a week (Nutrisystem 10-K, fiscal 2018). It spent $203.2 million on marketing in 2018, 29.4% of revenue (Nutrisystem 10-K, fiscal 2018), of which media was $178.0 million (Nutrisystem 10-K, fiscal 2018). After Tivity Health bought Nutrisystem in March 2019, $140.3 million of Tivity's $158.0 million marketing expenses that year was attributed to the Nutrition segment (Tivity Health 10-K, fiscal 2019). None of these filings counts the dietitians or the counseling sessions.

How many patients do dialysis companies with renal dietitians serve?

DaVita served approximately 200,500 patients in its U.S. dialysis business at the end of 2025 (DaVita 10-K, fiscal 2025), through 2,657 outpatient dialysis centers in 46 states and the District of Columbia (DaVita 10-K, fiscal 2025). It lists registered dietitians among the caregivers it employs at its dialysis facilities, with nurses, patient care technicians and social workers, but gives no count of them (DaVita 10-K, fiscal 2025). DaVita's report cites the United States Renal Data System for over 557,000 dialysis patients with end-stage kidney disease in the U.S. in 2023 (DaVita 10-K, citing USRDS). Fresenius Medical Care, which files a 20-F as a German company, served 291,902 dialysis patients worldwide at the end of 2025 (Fresenius Medical Care 20-F, 2025). Its 2023 report named dietitians among the clinical staff it was challenged to keep in its clinics (Fresenius Medical Care 20-F, 2023); its 2025 report does not name dietitians.

What do virtual-care, fitness and food companies disclose about nutrition counseling?

• Omada Health's programmes pair members with a health coach or a Certified Diabetes Care and Education Specialist and include nutrition counseling (Omada Health 10-K, fiscal 2025); the filing does not use the word "dietitian". Omada had over 886,000 members enrolled at the end of 2025 (Omada 10-K, fiscal 2025), and over 150,000 members had used GLP-1 medications (Omada 10-K, fiscal 2025).
• Hims & Hers had approximately 2,511,000 subscribers across all its specialties at the end of 2025, up 13% in a year, after adding compounded GLP-1s to its weight loss specialty in May 2024 (Hims & Hers 10-K, fiscal 2025).
• Life Time requires its registered dietitians, personal trainers, massage therapists and cosmetologists to keep a professional license or a top industry certification (Life Time 10-K, fiscal 2025). It ran 189 athletic country clubs at the end of 2025, offering nutrition coaching among its services (Life Time 10-K, fiscal 2025).
• Food brands court dietitians as an audience. The Simply Good Foods Company (Atkins, Quest) has sponsored numerous continuing education courses for registered dietitians (Simply Good Foods 10-K, fiscal 2026) and spent $62.0 million on advertising in fiscal 2026, down from $103.0 million in fiscal 2024 (Simply Good Foods 10-K, fiscal 2026). Beyond Meat launched its GoBeyond RD Hub for registered dietitians and nutrition experts in 2023 (Beyond Meat 10-K, fiscal 2025).

What do pay surveys say dietitians earn?

The Academy of Nutrition and Dietetics has run a Compensation and Benefits Survey of the Dietetics Profession since 2002, generally every two years; the latest edition is the 2024 survey (Academy of Nutrition and Dietetics). The Academy is the profession's membership association. Readex Research conducted the 2024 survey, and its executive summary appeared in the Journal of the Academy of Nutrition and Dietetics in January 2025. That summary's median-pay figures are not printed here. The results list on the Academy's page is for members only, the free copy sits on cdrnet.org, and both cdrnet.org and the journal's site block AI crawlers in robots.txt, so this page could not read and verify the summary. Government pay figures for the occupation are in the BLS section of this page.

Specialty surveys fill some gaps. Neonatal intensive care unit RDNs at 127 U.S. hospitals reported a median hourly pay of USD 33.24 in a 2021 survey of 143 dietitians (Journal of Human Nutrition and Dietetics). The authors found NICU RDNs earned about the same as, or a little more than, other U.S. paediatric RDNs, and much less than other members of the NICU team.

How big are the telehealth nutrition companies?

The largest insurance-billed virtual nutrition companies publish network counts in the thousands. Every figure below comes from a company that sells dietitian visits or practice software and published the number itself. None of them gives a date, a definition or an audit.

The two Nourish pages disagree with each other, and the software counts include coaches, therapists and other practitioners as well as dietitians. None of these numbers counts U.S. dietitians in private practice. The Academy's telehealth survey above and the government licence and occupation counts elsewhere on this page are the better guides for that.

How accurate is nutrition content on TikTok, Instagram and YouTube?

Studies from 2022 to 2026 find that much of it is not. A 2025 University of Sydney study rated 36% of sampled TikTok nutrition posts completely accurate, 24% mostly inaccurate and 18% completely inaccurate, and found no significant link between accuracy and engagement (Nutrients). The same study found 82% of applicable posts lacked transparent advertising and 77% did not disclose conflicts of interest (Nutrients).

On Instagram, a Deakin University review of posts from Australian nutrition accounts with 100,000 or more followers (September 2020 to September 2021) found 44.7% contained inaccuracies (IJBNPA), and rated 34.8% poor quality, with no post rated excellent (IJBNPA). A 2025 systematic review of 28 studies on nutrition misinformation found Instagram (50%) and YouTube (39.28%) the most studied platforms (Nutrición Hospitalaria).

Who posts nutrition videos, and how often is it a dietitian?

Usually not a dietitian. Among the 400 most-viewed videos from the top 40 nutrition YouTube channels, 22.50% were by creators with medical doctor or registered dietitian training (Appl Physiol Nutr Metab). On TikTok, the most common nutrition creators were health and wellness influencers (32%) and fitness creators (18%) (Nutrients).

Is content from dietitians more accurate, and do viewers trust it more?

In the studies that compared them, yes on accuracy. In the Australian Instagram study, posts by nutritionists or dietitians had 4.69 times the odds of higher accuracy scores than posts by brands and other accounts (IJBNPA). On YouTube, creators with MD, RD or nutritionist credentials cited references in a mean 0.55 of videos against 0.22 for others (Appl Physiol Nutr Metab), and in the sports nutrition sample, videos uploaded by dietitians scored significantly higher on all four quality scales used (J Int Soc Sports Nutr).

Credentials also move trust. In a 2026 experiment with 1,016 TikTok users aged 18-26 in the USA, UK, Australia and Canada, trust in both the influencer and the message was highest when the influencer reported a nutrition qualification, and accurate videos were trusted more than misinformation (J Health Popul Nutr). Engagement does not reliably follow quality: the TikTok, Instagram, DASH and cancer studies above found no link or a negative one between views or likes and accuracy.

What does the evidence say about dietitian-led counselling and medical nutrition therapy?

Most pooled trials find modest gains. A 2021 meta-analysis of 14 randomised trials found nutrition therapy from dietitians lowered HbA1c in adults with type 2 diabetes by 0.47 percentage points more than advice from other health professionals, and the authors called the evidence limited by heterogeneity and risk of bias (Clinical Nutrition). An earlier 2017 meta-analysis of 5 trials put the first-year HbA1c difference at 0.45%, with low or moderate quality of evidence (Am J Clin Nutr), and a 2019 pooled analysis of 11 studies found 0.43% (Primary Care Diabetes).

Several of these reviews come from the Academy of Nutrition and Dietetics' own evidence team, and the Academy's 2025 position paper, which summarised 25 systematic reviews from 2017 to 2024, argues for wider access to MNT (J Acad Nutr Diet). Cost evidence is thin: a 2021 scoping review found four studies covering 22,765 adults with type 2 diabetes (J Hum Nutr Diet).

What does the USPSTF recommend on diet counselling?

The U.S. Preventive Services Task Force gives a grade B to offering or referring adults with cardiovascular risk factors to behavioural counselling on healthy diet and physical activity (November 2020) (USPSTF). In its evidence review, counselling cut the risk of any cardiovascular event (pooled relative risk 0.80, 9 trials, n = 12,551) (USPSTF), lowered systolic blood pressure by 1.8 mm Hg (USPSTF) and weight by 1.6 kg at 12 to 24 months (USPSTF). The counselling in these trials came from many kinds of trained staff, not only dietitians.

For adults without risk factors, the 2022 grade is C: clinicians should individualise the decision, because the net benefit is small (USPSTF). That review drew on 43 trials with 77,965 participants (USPSTF). For adults with a BMI of 30 or higher, the 2018 grade B covers intensive, multicomponent behavioural interventions (USPSTF); participants were more likely than controls to lose 5% of their weight (risk ratio 1.94) (USPSTF). The USPSTF says all three topics are being updated.

How many U.S. adults get diet or nutrition counselling?

Fewer than half of those most likely to need it. In NHANES 2011-2018, 38.9% of adults with overweight or obesity who had seen a provider in the past year said they were counselled to cut fat or calories (BMJ Open), and 51.8% of those advised said they did so (BMJ Open). In NHANES 2017-2020, 43.9% of adults with a cardiometabolic diagnosis were advised to reduce fat or calories (Am J Lifestyle Med). These are self-reports of advice from any provider, not visits with a dietitian.

In physician offices, the National Ambulatory Medical Care Survey recorded diet counselling at 12% of visits by patients aged 60-79 without a stroke in 2016 (J Stroke Cerebrovasc Dis). After a cardiovascular hospitalisation, Michigan claims from 2015 to 2020 documented dietary counselling for 22.8% of episodes, mostly through cardiac rehabilitation (J Acad Nutr Diet).

The groups Medicare's MNT benefit covers are large. CDC estimates, as NIDDK reports them, put people with diabetes at 38.4 million in 2021 (NIDDK), with 29.4 million adults diagnosed (NIDDK), and chronic kidney disease at 35.5 million adults (NIDDK).

What did the Diabetes Prevention Program and CDC's National DPP find?

In the Diabetes Prevention Program trial, the lifestyle programme lowered the chance of developing type 2 diabetes by 58 percent over about three years versus placebo (NIDDK), and by 71 percent in participants aged 60 and older (NIDDK). CDC's National DPP turned that into a community programme run by lifestyle coaches. CDC's first evaluation covered 14,747 adults enrolled from 2012 to 2016 (Diabetes Care), of whom 35.5% reached the 5% weight-loss goal (Diabetes Care); a later CDC analysis tracked retention for 41,203 enrollees through February 2017 (Diabetes Care).

Reach stays low. Of 3.73 million privately insured adults with diagnosed prediabetes in 2015-2019 claims, 27,703 used the National DPP (Diabetes Care); for every 100 who did so rather than lower-intensity care, there were 1.94 fewer diabetes cases at 12 months (Diabetes Care). In one employer's workforce, enrolling had an 88% probability of saving money over two years, though the cost estimate's confidence interval crossed zero (Diabetes Care).

Do dietitians and nutritionists need a license in Florida?

Yes. Florida's Dietetics and Nutrition Practice Act (Fla. Stat. 468.501-468.518, as printed in the 2026 Florida Statutes) bars anyone from practising dietetics and nutrition or nutrition counseling for pay, or holding themselves out as a practitioner, unless they are licensed (Florida Statutes 468.504). The law also protects the titles: without a Florida license no one may use the title dietitian, nutritionist or nutrition counselor, with or without the word licensed (Florida Statutes 468.517). Breaking either rule is a misdemeanor of the first degree (Florida Statutes 468.517), which carries up to 1 year in jail (Florida Statutes 775.082) and a fine of up to $1,000 (Florida Statutes 775.083).

The law reaches paid nutrition advice given online. In 2017 the Florida Department of Health cited a health coach who met most of her clients online and had no Florida license. She paid $500.00 in fines plus $254.09 in investigative fees (11th Cir. opinion, GovInfo). On February 18, 2022 the Eleventh Circuit said it was bound to affirm the judgment for the department, so the licensing law stood against her free-speech challenge (11th Cir. opinion, GovInfo). People who sell or explain food and dietary supplements are exempt, as long as they do not charge a fee for dietetics practice or nutrition counseling (Florida Statutes 468.505). The same section exempts federal employees, cooperative extension home economists and students.

What does a Florida dietitian/nutritionist license require?

Florida requires a bachelor's or higher degree in nutrition or dietetics plus at least 900 hours of supervised experience (Florida Statutes 468.509). The Board of Medicine's rule says those hours must include at least 200 hours each of clinical and community nutrition (Fla. Admin. Code 64B8-42.002, Cornell LII). An "equivalent" major needs at least thirty semester hours of nutrition coursework (Fla. Admin. Code 64B8-42.002, Cornell LII). The licensing exam is the Commission on Dietetic Registration's registration exam. The pass mark is a scaled score of 25 on a 1-to-50 scale (Fla. Admin. Code 64B8-42.002, Cornell LII). Florida waives the exam for a registered dietitian registered with the Commission, and for certified nutrition specialists (Florida Statutes 468.509). Florida still requires only a bachelor's degree, while the national RDN credential now requires a graduate degree (see the next section).

Licensees must complete thirty (30) hours of continuing education every two years, and up to 20 of those hours may be home study (Fla. Admin. Code 64B8-45.001, Cornell LII). Two (2) hours must cover prevention of medical errors (Fla. Admin. Code 64B8-45.001, Cornell LII), and records must be kept for 4 years (Fla. Admin. Code 64B8-45.001, Cornell LII). To reactivate an inactive license, the law caps continuing education at 20 classroom hours for each inactive year (Florida Statutes 468.515). A temporary permit lasts 1 year and is held under a licensee's supervision (Florida Statutes 468.511). If a patient is under a physician's active care, a licensee needs that physician's dietary order before carrying out a dietary plan (Florida Statutes 468.516).

What do Florida's rules say about dietitians' ads and videos?

Florida's dietetics advertising rule defines advertising as any written or oral statement to the public meant to sell professional services. That covers promotional video. Under the rule, an ad is misleading if it states or implies the licensee is a specialist without post-baccalaureate training in that specialty (Fla. Admin. Code 64B8-44.002, Cornell LII). An ad is also misleading if it creates "false or unjustified expectations of beneficial assistance". For a first misleading or deceptive ad, the board's disciplinary guidelines recommend penalties from a letter of concern and a $300 fine up to suspension and a $1,500 fine (Fla. Admin. Code 64B8-44.003, Cornell LII).

Can an out-of-state dietitian see Florida clients by video?

Only with a Florida license or a Florida telehealth registration. Florida's telehealth statute covers professionals licensed under part X of chapter 468, the dietetics act (Florida Statutes 456.47). A dietitian licensed in another state can register as an out-of-state telehealth provider. To qualify, they must have had no license discipline in the 5-year period before applying (Florida Statutes 456.47). They must also name a Florida registered agent, carry liability coverage and stay within Florida's scope of practice. A registrant must report any new license restriction or discipline within 5 business days (Florida Statutes 456.47).

What does Medicare pay for medical nutrition therapy, and who can bill it?

Medicare Part B covers 3 hours of medical nutrition therapy (MNT) in the first calendar year (Medicare.gov). After that it covers up to 2 hours of follow-up a year (Medicare.gov), and qualifying beneficiaries pay nothing: "You pay nothing" (Medicare.gov). CMS's claims manual gives the same allowance, 3 hours in the initial calendar year and 2 follow-up hours after that (CMS Claims Processing Manual, ch. 4). The benefit covers only two condition groups. Federal regulation limits MNT to managing diabetes or a renal disease (eCFR, 42 CFR 410.130). Renal disease includes the 36 months after a kidney transplant, and people on maintenance dialysis are excluded (eCFR, 42 CFR 410.130). Medicare pays only when the beneficiary is referred for the service by a physician (eCFR, 42 CFR 410.132).

Only a registered dietitian or nutrition professional can bill. Under the federal definition, that means a bachelor's or higher degree and at least 900 hours of supervised practice (eCFR, 42 CFR 410.134), plus a state license or certification where the services are performed. In a state that does not provide for licensure or certification, registration with the Commission on Dietetic Registration is enough (eCFR, 42 CFR 410.134). Medicare pays dietitians the lower of their charge or 85% of the physician fee schedule amount (CMS Claims Processing Manual, ch. 4). MNT cannot be billed "incident to" a physician's services (CMS Claims Processing Manual, ch. 4).

Can Medicare MNT be delivered by video?

Yes. Medicare's telehealth regulation lists a registered dietitian or nutrition professional among the practitioners who may furnish telehealth services (eCFR, 42 CFR 410.78). CMS's 2026 telehealth list keeps 97802, 97803, 97804 and G0270 on it. CMS says that through December 31, 2027, beneficiaries can receive Medicare telehealth anywhere in the United States, including at home (CMS Telehealth FAQ). After that, most non-behavioral telehealth again requires a rural medical facility. Hospitals can bill MNT that their staff deliver remotely to patients at home until the same date. From January 1, 2028 they cannot (CMS Telehealth FAQ).

How does the Medicare Diabetes Prevention Program differ?

It is a separate benefit, and its suppliers do not have to be dietitians. Participants commit to 16 weekly sessions followed by 6 monthly maintenance sessions, in person or online (CMS Innovation Center). The CY 2026 Physician Fee Schedule final rule added coverage for asynchronous online delivery through December 31, 2029 (CMS Innovation Center).

Will Congress widen Medicare nutrition coverage?

Not yet. Bills to do so have been introduced many times, and as of November 5, 2026 none had passed. The Medical Nutrition Therapy Act of 2025 (H.R. 6199) was introduced on November 20, 2025 (GovInfo). It would extend MNT beyond diabetes and kidney disease and let physician assistants, nurse practitioners and others make referrals. Its findings state that Over two-thirds of Medicare fee-for-service beneficiaries have two or more chronic conditions (GovInfo). The bill does not give a source for that figure. The Senate version (S. 3934) followed on February 26, 2026 (GovInfo). A bill to add Medicare coverage of MNT by registered dietitians was introduced as early as August 4, 1995 (GovInfo). The current benefit has been paid since 2002.

The Treat and Reduce Obesity Act would let Medicare cover intensive behavioral therapy for obesity from providers including registered dietitians. The current House version (H.R. 4231) was introduced on June 27, 2025 (GovInfo). The first version was introduced on December 20, 2012 (GovInfo). GovInfo has an introduced version in every Congress since then, and none was enacted.

How do other states regulate dietitians and nutritionists?

States regulate dietitians in four ways. Licensure states, such as Florida, restrict the practice itself. Certification or title-protection states restrict only who may use a title. A few states have no dietetics law at all. Illinois is a licensure state. Since Public Act 102-945 took effect on January 1, 2023, no one there may provide or offer medical nutrition therapy without a license (Illinois Compiled Statutes 225 ILCS 30/15). Michigan shows that a state can move in either direction. In April 2024 its legislature passed HB 4608 to license dietitian nutritionists, 10 years after it had repealed its earlier licensing law (Academy of Nutrition and Dietetics, archived). The Academy of Nutrition and Dietetics, which lobbies for licensure, says: “All states accept the RDN credential for state licensure purposes” (eatright.org).

Federal billing rules follow state law. Medicare requires an MNT provider to hold a state license or certification where one exists. In the other states, Commission on Dietetic Registration registration is enough (does not provide for licensure or certification).

We did not build a state-by-state count. The Commission on Dietetic Registration's licensure summary is on cdrnet.org, and that site's robots.txt blocks AI agents. The Academy's licensure map would not load for scripts. California's and New York's statute sites refused our requests, and so did the Internet Archive's copies of them.

Can a dietitian practise in several states with one license?

The Dietitian Licensure Compact is being built for that. It would let a dietitian licensed in one member state practise in the others, including by telehealth, without a separate license in each. It needed seven states to take effect. Utah became the eighth to enact it in March 2025, past the seven-state threshold (Academy of Nutrition and Dietetics, archived). Kansas became the ninth state in April 2025 (Academy of Nutrition and Dietetics, archived). Both counts come from the Academy's announcements. We could not read the compact commission's own site to confirm later enactments, and Florida is not named as a member in those announcements.

What does it take to become a registered dietitian nutritionist now?

A graduate degree. The Academy says a new RDN must complete at least a master's degree. The other steps are coursework in an ACEND-accredited program, supervised practice through an ACEND-accredited route, and a pass on the Commission on Dietetic Registration's national exam (eatright.org). The Commission sets the effective date of the graduate-degree rule (January 1, 2024), the length of supervised practice and the 75-unit, five-year continuing-education cycle. Its site blocks AI agents, so we do not cite those figures here. ACEND's standards pages would not load for scripts. State law and Medicare have not caught up. Florida's license and Medicare billing both still require only a bachelor's degree and 900 hours of supervised practice.

What disclosure rules apply when a dietitian promotes a brand in a video?

The FTC's Endorsement Guides (16 CFR Part 255, revised July 26, 2023) cover sponsored nutrition content. Suppose a dietitian is paid, or given free products, by a food or supplement brand, and the audience would not expect that link. Then the connection must be disclosed clearly and conspicuously (eCFR, 16 CFR 255.5). On social media the disclosure should be unavoidable (eCFR, 16 CFR 255.0). A claim made in both the picture and the soundtrack of a video should be disclosed in both. If an ad presents its endorser as an expert, the endorser must actually have that expertise (eCFR, 16 CFR 255.3). The Guides are the FTC's reading of the FTC Act, not a separate rule. In November 2023 the FTC sent warning letters to registered dietitians and other health influencers. That story is covered on our fitness video statistics page.

What do the popular nutrition numbers really say?

Four numbers turn up again and again in nutrition posts and in advice to dietitians about video. Two of them come from real reports but are quoted without the report's own limits, one has no original we could find, and one is a single vendor's client test. Each claim below gives the number as repeated, where it came from and what the sources measured instead. We ran exact-phrase searches on each figure and its older wordings, read archived editions of the reports in the Internet Archive, read the National Academies' own pages and pulled the journal abstracts through PubMed's E-utilities.

"Drink eight 8-ounce glasses of water a day"

The claim as repeated. Baptist Health South Florida put the rule to its chief wellness dietitian in a July 2017 article and video. The article called the rule of drinking at least eight glasses a day "mostly myth" and said "even dietitians don't know much about its origin" (Baptist Health South Florida, 2017). Current consumer pages now quote total fluid rather than glasses. Mayo Clinic says some studies suggest the average healthy adult gets enough with about 11.5 cups (2.7 liters) to 15.5 cups (3.7 liters) of total fluid from all sources (Mayo Clinic, 2026 capture). Harvard Health Publishing gives about 15.5 cups a day for men and 11.5 for women from all sources, of which four to six cups may be plain water (Harvard Health).

Where it came from. Heinz Valtin of Dartmouth Medical School searched for the rule's origin in a 2002 review in the American Journal of Physiology. He searched databases and older print literature and consulted nutritionists who study thirst. He found no scientific studies in support of "8 x 8" (Valtin, 2002). He traced the most likely source to the Food and Nutrition Board's 1945 Recommended Dietary Allowances. The 1945 edition is not readable online, but the Board's 1953 edition repeats the passage: "A suitable allowance of water for adults is 2.5 liters daily in most instances. An ordinary standard is one milliliter for each calorie of food. Much of this quantity is contained in prepared foods" (Food and Nutrition Board, 1953). The same section said water "should be allowed ad libitum" and that thirst usually serves as an adequate guide, except for infants and sick persons (Food and Nutrition Board, 1953). The figure was total water, food included. The repeated rule kept the volume and dropped the sentence about food.

The source's own limits. Valtin limited his conclusion to healthy adults in a temperate climate leading a largely sedentary life. He wrote that intakes equal to or greater than 8 x 8 are advisable for some diseases and for vigorous work and exercise, especially in hot climates (Valtin, 2002).

What the current reference says. The Institute of Medicine's 2004 water report sets an adequate intake for total water, from drinks and food, of 3.7 liters a day for men and 2.7 liters for women aged 19 to 30. It set these at median intakes in U.S. survey data, because normal hydration holds over a wide range of intakes (Institute of Medicine, 2005). Its release of February 11, 2004 put it as about 2.7 liters (91 ounces) a day for women and 3.7 liters (125 ounces) for men among people who appear adequately hydrated (National Academies, 2004). About 80 percent of that came from drinking water and other beverages, including caffeinated ones, and 20 percent from food (National Academies, 2004). The report itself gives 81 percent for adults aged 19 to 30 in the NHANES III survey of 1988-1994 (Institute of Medicine, 2005). The panel's chair said the panel offered no rule of thumb on how many glasses of water to drink a day (National Academies, 2004). The report's reference list includes Valtin's "8 x 8" review (Institute of Medicine, 2005). A 2022 study in Science measured daily water turnover with isotope tracers in 5604 people aged 8 days to 96 years in 23 countries. Turnover varied with age, body size, physical activity, pregnancy, income and climate (Yamada et al., 2022). Turnover is the water the body uses from all sources, not a drinking target.

"You need X grams of protein per kilogram"

The claim as repeated. Posts state one per-kilogram or per-pound figure as if it applied to everyone. The gym version is 1 gram per pound of body weight, about 2.2 g per kilogram. A March 2026 Outlift article opens with "most bodybuilders try to eat about 1 gram of protein per pound of body weight per day" before it questions the rule (Outlift, 2026). We found no study or guideline that sets 1 g per pound as a requirement. The pages that discuss it describe it as a bodybuilding custom.

Where the 0.8 comes from. The Recommended Dietary Allowance for protein comes from the Institute of Medicine's macronutrient Dietary Reference Intakes (2002, printed 2005), built on nitrogen-balance studies. A 2017 review in Advances in Nutrition notes that the adult RDA of 0.8 g/kg has been essentially unchanged for more than 70 years and was derived to estimate the minimum intake that avoids a loss of body nitrogen (Wolfe et al., 2017). Its authors disclose beef-industry funding and employment. The same review notes that the Acceptable Macronutrient Distribution Range, 10-35% of calories from protein, starts above the RDA (Wolfe et al., 2017). Harvard Health Publishing restates the RDA as 0.36 grams per pound and calls it the minimum needed to keep from getting sick, not the amount to eat every day (Harvard Health).

Where the higher numbers come from. They come from position stands and reviews about particular groups. The International Society of Sports Nutrition's 2017 position stand says 1.4-2.0 g protein per kg a day is sufficient for most exercising individuals building or keeping muscle (ISSN, 2017). It adds that 2.3-3.1 g/kg "may be needed" to keep lean mass in resistance-trained people during calorie deficits (ISSN, 2017). Several of its authors work for supplement or contract-research firms. A 2018 meta-analysis in the British Journal of Sports Medicine pooled 49 trials with 1863 participants doing resistance training (Morton et al., 2018).Protein supplementation beyond total intakes of 1.62 g/kg a day gave no further gains in fat-free mass (Morton et al., 2018). Its senior author discloses National Dairy Council support. For people over 65, the PROT-AGE Study Group's 2013 position paper recommends at least 1.0 to 1.2 g per kg a day (PROT-AGE, 2013). A 2016 conference synopsis in Applied Physiology, Nutrition, and Metabolism proposed at least 1.2 to 1.6 g/kg a day as a better target for adult health outcomes (Phillips et al., 2016).

What the sources support. The 0.8 g/kg figure is a floor for nearly all healthy adults. The higher figures are ranges for exercising people or older adults, each from groups with stated industry ties or conference origins. None of these sources gives one number for everyone, and none sets 1 g per pound as a requirement.

"Video lifts conversions 80%"

The claim as repeated. In a February 17, 2020 episode of The Unconventional RD, a podcast for dietitians, a dietitian who specialises in video told listeners that video "really does boost your conversion rates, you can boost them up to 80%" (The Unconventional RD, 2020). The episode named no study.

Where it came from. The trail starts with EyeView, which made and tested videos for its clients. A blog post of December 4, 2008 said visitors to eToro's site who viewed EyeView's video were 20% more likely to download the product, comparing viewers with non-viewers who chose for themselves whether to watch (EyeView, 2009 capture). The first 80% we found is in a post of February 10, 2009: viewers of EyeView's videos for UMOO were 80% more likely to become depositing users, the same kind of comparison (EyeView, 2010 capture). In November 2009 an EyeView post quoted a TutorVista manager saying the first test on one landing page boosted conversion by over 80 percent (EyeView, 2009 capture). EyeView's TutorVista case study gave 86 percent for a page with an autoplaying video for first-time visitors (EyeView, 2010 capture).

How it changed. EyeView's 2010 white paper said that "in some cases" the boost was over 80% (EyeView white paper). It reported the eToro split test, earlier told as 20%, as almost 32 percent (EyeView white paper). By August 2010 Unbounce, a landing-page software seller, wrote that "a study by eyeviewdigital.com shows that using video on landing pages can increase conversion by 80%" (Unbounce, 2010 capture). That dropped "in some cases" and the single-client scope.

What to use instead. Unbounce later looked at about 35,000 of its customers' landing pages in each of three periods from late 2020 to early 2021 (Unbounce). It found in August 2021 that video had a minimal or negative effect on conversion, whatever the page's goal (Unbounce). Neither study looked at nutrition practices. A practice that wants a number for its own site needs its own test: the same page with and without the video, shown to visitors at random.

"Anyone can call themselves a nutritionist"

The claim as repeated. A dietitian-versus-nutritionist chart made under a U.S. Administration for Community Living grant says some states do not regulate the term, so "anyone could call themselves a nutritionist," and tells readers to check their state's rules (ACL-funded chart). The counts attached to the claim disagree. NutritionEd.org, an education directory, says approximately 30 states allow nutrition counseling without specific licensing (NutritionEd.org). Other pages give "more than 40" or 45 states that license dietitians and nutritionists. None of them lists the statutes behind its count.

Why the counts differ. The repeated numbers count different things: states that license dietitians, states that protect the title "nutritionist", and states that restrict who may give individual nutrition care. The state-by-state rules, including Florida's licensed dietitian/nutritionist law, are covered in the licensing section of this page, which reads the statutes themselves.

Every popular claim our research pages trace, 763 in all, is on one page: popular video statistics, fact-checked.

How we built this page

We started from the questions people search for about dietitian video statistics and looked for the organization that actually produced each answer. Every figure on this page sits in an evidence ledger with its source, the exact table or paragraph it came from, the measurement period, the population measured, and the date we checked it. This edition holds 513 figures from 77 publishers.

On November 5, 2026, each sourced figure on this page was re-fetched with the fetch cache cleared and matched against the recorded wording: BLS occupation wage estimates (through the BLS data API), Employment Projections, the Occupational Outlook Handbook and the Current Population Survey (bls.gov pages through Internet Archive copies, because bls.gov refuses automated requests), the Quarterly Census of Employment and Wages; Census County Business Patterns, Nonemployer Statistics and the 2022 Economic Census (through the Census data API) and the 2022 NAICS Manual; CMS’s Medicare Physician and Other Practitioners, provider enrolment and Diabetes Prevention Program files (through CMS’s data API), its claims manual, Medicare.gov and its telehealth guidance; the Code of Federal Regulations through eCFR; Florida’s dietetics, telehealth and penalty statutes, the Board of Medicine’s dietetics rules (through Cornell’s Legal Information Institute) and the Department of Health’s annual reports; the Illinois statute, bill texts and an Eleventh Circuit opinion through GovInfo; New York’s, Washington’s, Connecticut’s and Delaware’s licence data; USPSTF recommendations and NIDDK pages; peer-reviewed studies (PubMed abstracts re-read through the National Library of Medicine’s E-utilities, because pubmed.ncbi.nlm.nih.gov refuses automated requests); the 10-K and 20-F filings of WW International, Medifast, Nutrisystem, Tivity Health, DaVita, Fresenius Medical Care, Omada Health, Hims & Hers, Life Time, Simply Good Foods and Beyond Meat; YouTube’s help and blog pages; the telehealth nutrition and practice-software companies’ own pages; and the pages behind each popular claim. Where a site refuses automated requests we read an Internet Archive copy. Our licence counts come from Florida’s public licence search and the Washington, Connecticut and Delaware open licence files, our Medicare counts from CMS’s public files, our 10-K phrase counts from EDGAR full-text search, and our YouTube figures from the YouTube Data API. We left out the Commission on Dietetic Registration’s registry statistics, its credential rules and the Academy’s 2024 Compensation and Benefits Survey summary (the cdrnet.org and jandonline.org robots rules), the Academy’s member pages and ACEND’s standards (login walls), the National Academies Press and the American Journal of Physiology’s own pages (robots rules; we cite PubMed and the National Academies’ news release instead), CDC pages that refused automated requests while the Internet Archive was offline (we cite NIDDK’s and CDC authors’ published versions), and Medicare’s telehealth list, which CMS publishes only as spreadsheets.

We only cite the producer: government agencies, regulators, company filings and official posts, and the survey owner's own report. We do not cite statistics roundups, Statista-style aggregators, or salary sites without a public method. We did not bypass paywalls or sign-up forms; where a full report was gated, we used only the figures its publisher states publicly.

Figures marked "our calculation" are arithmetic on the cited numbers, and anyone can reproduce them:

This edition contains no Mark Studios customer data.

Limitations

• Our YouTube read follows YouTube’s ranking. The 584 videos are what YouTube’s search returned for ‘dietitian’, ‘what I eat in a day’ and ‘meal prep’ (the top 200 results of each, sorted by views, with no country filter) on November 5, 2026. It is not a census of nutrition video, view counts are lifetime snapshots that include views from ads, and we sorted 276 channels by hand from their public text. One India-set dietitian channel holds 62.8% of the dietitians’ views, so we give their share with and without it.
• Medicare counts cover Original Medicare only. CMS’s files count Part B fee-for-service claims, not Medicare Advantage plans, count 15- or 30-minute units rather than visits, and leave out any cell with 10 or fewer beneficiaries, so the provider-level file holds about 73% of the services and no Florida facility rows.
• Job and industry counts miss part of the trade. BLS’s payroll survey leaves out the self-employed, the household survey counts more people than the payroll survey, and OEWS is not built for year-to-year comparison. Private practices file under NAICS 621399, a code they share with acupuncture, massage therapy and other practitioners’ offices.
• Licence counts count paperwork. Florida’s licence search matches some licences to two counties, so county figures overlap and should not be added up; nearly three in ten active Florida licences belong to holders with an out-of-state address, and each state counts differently, so state totals are not directly comparable.
• Several national counts were closed to us. The credentialing body’s registry statistics and the Academy’s pay survey sit behind robots rules or member logins, so this page has no national count of registered dietitian nutritionists and no Academy pay figures.
• Studies of social media are small and often outside the U.S. Content studies rate a few hundred posts or videos at one point in time, and most surveys of dietitians’ own social media use come from Australia, Europe and the Middle East. Evidence reviews measured particular conditions against particular controls and rate their own certainty; this page reports what each found and recommends no diet or treatment.
• Company figures are self-reported. Telehealth nutrition companies and software sellers publish network and user counts without dates or definitions, and one company printed two different counts on the same day.

How to cite this page

For a single figure, cite the original publisher named next to it, and link here if the verification trail is useful to your readers. Each figure has its own anchor, so you can link straight to it, for example https://www.markstudios.com/research/dietitian-video-statistics#DRV-206. To cite the page as a whole:

Mark Studios. "Dietitian Video Statistics." Last verified Nov 5, 2026. https://www.markstudios.com/research/dietitian-video-statistics

@misc{markstudios_dietitian_video_statistics_2026,
  author = {{Mark Studios}},
  title = {{Dietitian Video Statistics}},
  year = {2026},
  month = nov,
  url = {https://www.markstudios.com/research/dietitian-video-statistics},
  note = {Last verified 2026-11-05}
}

Our calculations and the evidence table are free to reuse with attribution and a link to this page. Each underlying figure remains the claim of its original publisher, and some publishers ask for a link when their figures are reused.

Sources

Download the evidence table (CSV)

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99. Centers for Medicare & Medicaid Services, Medicare Diabetes Prevention Program : 2026-02-01 (2026-02-01). Accessed 2026-11-05.
100. WW International, Inc. (SEC Form 10-K), WW International, Inc. Form 10-K for the fiscal year ended December 28, 2024 (2025-02-28). Accessed 2026-11-05.
101. WW International, Inc. (SEC Form 10-K), WW International, Inc. Form 10-K for the fiscal year ended December 31, 2025 (2026-03-16). Accessed 2026-11-05.
102. Medifast, Inc. (SEC Form 10-K), Medifast, Inc. Form 10-K for the fiscal year ended December 31, 2025 (2026-02-17). Accessed 2026-11-05.
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104. Nutrisystem, Inc. (SEC Form 10-K), Nutrisystem, Inc. Form 10-K for the fiscal year ended December 31, 2018 (2019-02-26). Accessed 2026-11-05.
105. Tivity Health, Inc. (SEC Form 10-K), Tivity Health, Inc. Form 10-K for the fiscal year ended December 31, 2019 (2020-02-27). Accessed 2026-11-05.
106. DaVita Inc. (SEC Form 10-K), DaVita Inc. Form 10-K for the fiscal year ended December 31, 2025 (2026-02-11). Accessed 2026-11-05.
107. Fresenius Medical Care AG (SEC Form 20-F), Fresenius Medical Care AG Form 20-F for the fiscal year ended December 31, 2025 (2026-02-24). Accessed 2026-11-05.
108. Fresenius Medical Care AG (SEC Form 20-F), Fresenius Medical Care AG Form 20-F for the fiscal year ended December 31, 2023 (2024-02-20). Accessed 2026-11-05.
109. Omada Health, Inc. (SEC Form 10-K), Omada Health, Inc. Form 10-K for the fiscal year ended December 31, 2025 (2026-03-06). Accessed 2026-11-05.
110. Hims & Hers Health, Inc. (SEC Form 10-K), Hims & Hers Health, Inc. Form 10-K for the fiscal year ended December 31, 2025 (2026-02-23). Accessed 2026-11-05.
111. Life Time Group Holdings, Inc. (SEC Form 10-K), Life Time Group Holdings, Inc. Form 10-K for the fiscal year ended December 31, 2025 (2026-02-24). Accessed 2026-11-05.
112. The Simply Good Foods Company (SEC Form 10-K), The Simply Good Foods Company Form 10-K for the fiscal year ended August 29, 2026 (2026-10-27). Accessed 2026-11-05.
113. Beyond Meat, Inc. (SEC Form 10-K), Beyond Meat, Inc. Form 10-K for the fiscal year ended December 31, 2025 (2026-04-09). Accessed 2026-11-05.
114. Academy of Nutrition and Dietetics (professional association), Compensation and Benefits Survey of the Dietetics Profession (undated). Accessed 2026-11-05.
115. Journal of Human Nutrition and Dietetics (Hand et al., Case Western Reserve University), US neonatal intensive care unit registered dietitian nutritionists salary description and correlates: results of a survey (2024-05-13). Accessed 2026-11-05.
116. Nourish (telehealth nutrition seller), About | Nourish (undated). Accessed 2026-11-05.
117. Nourish (telehealth nutrition seller), Nourish homepage (undated). Accessed 2026-11-05.
118. Fay (telehealth nutrition seller), Fay homepage (undated). Accessed 2026-11-05.
119. Healthie (practice software seller), Healthie homepage (undated). Accessed 2026-11-05.
120. Practice Better (practice software seller), Practice Better homepage (undated). Accessed 2026-11-05.
121. Nutrients (Zeng et al., University of Sydney), #WhatIEatinaDay: The Quality, Accuracy, and Engagement of Nutrition Content on TikTok (2025-02-24). Accessed 2026-11-05.
122. International Journal of Behavioral Nutrition and Physical Activity (Denniss et al., Deakin University), #Fail: the quality and accuracy of nutrition-related information by influential Australian Instagram accounts (2024-02-14). Accessed 2026-11-05.
123. Nutrición Hospitalaria (Segado Fernández et al.), Disinformation about diet and nutrition on social networks: a review of the literature (2025-04-21). Accessed 2026-11-05.
124. Nutrition (Sütcüoğlu et al.), Evaluation of scientific reliability and quality of YouTube videos on cancer and nutrition (2022-12-13). Accessed 2026-11-05.
125. PLOS ONE (Minadeo and Pope), Weight-normative messaging predominates on TikTok-A qualitative content analysis (2022-11-01). Accessed 2026-11-05.
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127. Applied Physiology, Nutrition, and Metabolism (Alfarhan et al., Dalhousie University), Observational analysis of general nutrition-related YouTube videos for content creator credentials, references, and sponsorships (2026-01-01). Accessed 2026-11-05.
128. Journal of the International Society of Sports Nutrition (Kiss et al.), Evaluation of the reliability and educational quality of YouTube videos on sport nutrition topics (2023-11-12). Accessed 2026-11-05.
129. Journal of Cardiovascular Nursing (Boté-Vericad et al.), Video Clips of the Dietary Approaches to Stop Hypertension (DASH) Diet on YouTube: A Social Media Content Analysis (2025-04-15). Accessed 2026-11-05.
130. Journal of Human Nutrition and Dietetics (Başmısırlı et al.), Evaluating the Quality and Reliability of YouTube Videos Providing Nutritional Recommendations for Irritable Bowel Syndrome (2025-08-01). Accessed 2026-11-05.
131. Journal of Health, Population and Nutrition (Fox et al.), Examining the spread of nutrition-based misinformation by TikTok influencers: an experimental analysis of trust among young adults (2026-05-11). Accessed 2026-11-05.
132. Clinical Nutrition (Siopis et al., University of Sydney), Effectiveness of dietetic intervention for people with type 2 diabetes: A meta-analysis (2020-12-16). Accessed 2026-11-05.
133. American Journal of Clinical Nutrition (Møller et al.), A systematic review and meta-analysis of nutrition therapy compared with dietary advice in patients with type 2 diabetes (2017-11-01). Accessed 2026-11-05.
134. Primary Care Diabetes (Razaz et al.), The health effects of medical nutrition therapy by dietitians in patients with diabetes: A systematic review and meta-analysis (2019-06-09). Accessed 2026-11-05.
135. Journal of the Academy of Nutrition and Dietetics (Mitchell et al.), Effectiveness of Dietetic Consultations in Primary Health Care: A Systematic Review of Randomized Controlled Trials (2017-08-19). Accessed 2026-11-05.
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137. American Journal of Clinical Nutrition (Dudzik et al., Academy of Nutrition and Dietetics evidence team), The effectiveness of medical nutrition therapy provided by a dietitian in adults with prediabetes: a systematic review and meta-analysis (2023-09-09). Accessed 2026-11-05.
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139. Nutrition & Dietetics (Ross et al.), Effectiveness of dietetic consultation for lowering blood lipid levels in the management of cardiovascular disease risk: A systematic review and meta-analysis of randomised controlled trials (2019-02-04). Accessed 2026-11-05.
140. Nutrition & Dietetics (Lucan et al.), Effect of individual and group-based dietitian-delivered education interventions on outcomes for people with chronic kidney disease stages 3a-5: A systematic review and meta-analysis (2026-10-19). Accessed 2026-11-05.
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143. Journal of the Academy of Nutrition and Dietetics (Moloney et al.), Effectiveness of Medical Nutrition Therapy Provided by Registered Dietitian Nutritionists on Nutrition and Health Outcomes in Adults with Protein-Energy Malnutrition: A Systematic Review and Meta-Analysis (2025-03-15). Accessed 2026-11-05.
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145. Journal of Human Nutrition and Dietetics (Siopis et al.), Cost effectiveness of dietitian-led nutrition therapy for people with type 2 diabetes mellitus: a scoping review (2020-10-14). Accessed 2026-11-05.
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152. Journal of the Academy of Nutrition and Dietetics (Brandt et al.), Dietary Counseling Documentation Among Patients Recently Hospitalized for Cardiovascular Disease (2024-03-08). Accessed 2026-11-05.
153. National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK, NIH), Diabetes Statistics (undated (live page)). Accessed 2026-11-05.
154. National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK, NIH), Kidney Disease Statistics for the United States (undated (live page)). Accessed 2026-11-05.
155. National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK, NIH), Diabetes Prevention Program (DPP) (undated (live page)). Accessed 2026-11-05.
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160. Florida Legislature, The 2026 Florida Statutes, s. 468.504 License required (2026). Accessed 2026-11-05.
161. Florida Legislature, The 2026 Florida Statutes, s. 468.517 Prohibitions; penalties (2026). Accessed 2026-11-05.
162. Florida Legislature, The 2026 Florida Statutes, s. 775.082 Penalties; applicability of sentencing structures (2026). Accessed 2026-11-05.
163. Florida Legislature, The 2026 Florida Statutes, s. 775.083 Fines (2026). Accessed 2026-11-05.
164. U.S. Court of Appeals for the Eleventh Circuit, via GovInfo, Heather Kokesch Del Castillo v. Secretary, Florida Department of Health, No. 19-13070 (11th Cir. Feb. 18, 2022) (2022-02-18). Accessed 2026-11-05.
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166. Florida Legislature, The 2026 Florida Statutes, s. 468.509 Dietitian/nutritionist; requirements for licensure (2026). Accessed 2026-11-05.
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169. Florida Legislature, The 2026 Florida Statutes, s. 468.515 Inactive status (2026). Accessed 2026-11-05.
170. Florida Legislature, The 2026 Florida Statutes, s. 468.511 Dietitian/nutritionist; temporary permit (2026). Accessed 2026-11-05.
171. Florida Legislature, The 2026 Florida Statutes, s. 468.516 Practice requirements (2026). Accessed 2026-11-05.
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177. Centers for Medicare & Medicaid Services (Medicare.gov), Medical nutrition therapy services (2026). Accessed 2026-11-05.
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179. Centers for Medicare & Medicaid Services (CMS), via eCFR, 42 CFR 410.130 (2023-11-16). Accessed 2026-11-05.
180. Centers for Medicare & Medicaid Services (CMS), via eCFR, 42 CFR 410.132 (2021-11-19). Accessed 2026-11-05.
181. Centers for Medicare & Medicaid Services (CMS), via eCFR, 42 CFR 410.134 (2017-01-03). Accessed 2026-11-05.
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184. Centers for Medicare & Medicaid Services (CMS Innovation Center), Medicare Diabetes Prevention Program (MDPP) Expanded Model (2026). Accessed 2026-11-05.
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186. U.S. Government Publishing Office (GovInfo), S. 3934 (IS), Medical Nutrition Therapy Act of 2026, 119th Congress (2026-02-26). Accessed 2026-11-05.
187. U.S. Government Publishing Office (GovInfo), H.R. 2247 (IH), 104th Congress (1995-08-04). Accessed 2026-11-05.
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189. U.S. Government Publishing Office (GovInfo), S. 3699 (IS), Treat and Reduce Obesity Act of 2012, 112th Congress (2012-12-20). Accessed 2026-11-05.
190. Illinois General Assembly, 225 ILCS 30/15, Dietitian Nutritionist Practice Act, License required (2026). Accessed 2026-11-05.
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192. Academy of Nutrition and Dietetics (eatright.org), Become an RDN (2026). Accessed 2026-11-05.
193. Academy of Nutrition and Dietetics (professional association; lobbies for licensure), Internet Archive capture, Utah's Compact Enactment Brings Dietitians Closer to Less Burdensome Multistate Practice (2025-03-28). Accessed 2026-11-05.
194. Academy of Nutrition and Dietetics (professional association; lobbies for licensure), Internet Archive capture, Kansas Becomes Ninth State to Pass Dietitian Licensure Compact Legislation (2025-04-10). Accessed 2026-11-05.
195. Federal Trade Commission (FTC), via eCFR, 16 CFR Part 255 - Guides Concerning Use of Endorsements and Testimonials in Advertising (2023-07-26). Accessed 2026-11-05.
196. Baptist Health South Florida (hospital system), How Much Water Do You Really Need? (Video) (2017-07-06). Accessed 2026-11-05.
197. Mayo Clinic, Water: How much should you drink every day? (Not stated). Accessed 2026-11-05.
198. Harvard Health Publishing (Harvard Medical School), How much water should you drink? (Not stated). Accessed 2026-11-05.
199. American Journal of Physiology (Valtin, Dartmouth Medical School), "Drink at least eight glasses of water a day." Really? Is there scientific evidence for "8 x 8"? (2002-11). Accessed 2026-11-05.
200. National Academy of Sciences-National Research Council, Food and Nutrition Board, Recommended Dietary Allowances, Revised 1953 (Publication 302) (1953). Accessed 2026-11-05.
201. Institute of Medicine (National Academies Press), Dietary Reference Intakes for Water, Potassium, Sodium, Chloride, and Sulfate (2005), Chapter 4: Water (2005). Accessed 2026-11-05.
202. National Academies (Institute of Medicine), Report Sets Dietary Intake Levels for Water, Salt, and Potassium To Maintain Health and Reduce Chronic Disease Risk (2004-02-11). Accessed 2026-11-05.
203. Science (Yamada et al., IAEA Doubly Labeled Water Database Consortium), Variation in human water turnover associated with environmental and lifestyle factors (2022-11-25). Accessed 2026-11-05.
204. Outlift (fitness coaching site; repeater), Do You Need 1 Gram of Protein Per Pound Per Day? (2026-03-03). Accessed 2026-11-05.
205. Advances in Nutrition (Wolfe et al., University of Arkansas for Medical Sciences), Optimizing Protein Intake in Adults: Interpretation and Application of the Recommended Dietary Allowance Compared with the Acceptable Macronutrient Distribution Range (2017-03-15). Accessed 2026-11-05.
206. Harvard Health Publishing (Harvard Medical School), How much protein do you need every day? (Not stated). Accessed 2026-11-05.
207. Journal of the International Society of Sports Nutrition (Jäger et al.), International Society of Sports Nutrition Position Stand: protein and exercise (2017-06-20). Accessed 2026-11-05.
208. British Journal of Sports Medicine (Morton et al., McMaster University), A systematic review, meta-analysis and meta-regression of the effect of protein supplementation on resistance training-induced gains in muscle mass and strength in healthy adults (2018-03). Accessed 2026-11-05.
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210. Applied Physiology, Nutrition, and Metabolism (Phillips, Chevalier, Leidy), Protein "requirements" beyond the RDA: implications for optimizing health (2016-05). Accessed 2026-11-05.
211. The Unconventional RD (Erica Julson; podcast for dietitians; repeater), 008: How to Use Video in Your Business in 2020 with Betsy Ramirez (2020-02-17). Accessed 2026-11-05.
212. EyeView Digital (video production and testing vendor; sold the videos it tested), EyeView - The new "Conversion" game (2008-12-04). Accessed 2026-11-05.
213. EyeView Digital (video production and testing vendor; sold the videos it tested), UMOO - a prime beef example of EyeView's success (2009-02-10). Accessed 2026-11-05.
214. EyeView Digital (video production and testing vendor; sold the videos it tested), Another video conversion success story (2009-11-10). Accessed 2026-11-05.
215. EyeView Digital (video production and testing vendor; sold the videos it tested), Case study: TutorVista (2009). Accessed 2026-11-05.
216. EyeView Digital (video production and testing vendor; sold the videos it tested), Making Video Accountable (EyeView white paper) (2010). Accessed 2026-11-05.
217. Unbounce (landing-page software seller), The benefits of using video on landing pages (2010-08). Accessed 2026-11-05.
218. Unbounce (landing-page software seller; analysis of its own customers' pages), Video on landing pages means more conversions, right? Wrong. Here's why (2021-08-26). Accessed 2026-11-05.
219. U.S. Administration for Community Living (grant-funded chart, grant 90PPNU0002), What's the difference? Between a registered dietitian and a nutritionist (Not stated (before 2024)). Accessed 2026-11-05.
220. NutritionEd.org (education directory; repeater), How to Become a Nutritionist by State | 2026 License Requirements (2026). Accessed 2026-11-05.

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We re-verify every figure quarterly and when a major source publishes a new edition. The next scheduled review is February 2027. Corrections go to contact@markstudios.com.

• Nov 5, 2026: First published with 513 figures from 77 publishers, each checked against its original source.