Pick any two of our 24 countries to see side by side who regulates dietitians, which credential they hold, whether the title is protected, the main professional association, how supplements are regulated, the published workforce numbers and notable companies. Every figure carries the name of its publisher.
| United States | United Kingdom | |
|---|---|---|
| Region | North America | Europe |
| Who regulates dietitians | Commission on Dietetic Registration (CDR) + state licensure boards | Health and Care Professions Council (HCPC) |
| Credential | RDN / RD; NDTR / DTR | HCPC-registered dietitian (RD) |
| Is the title protected? | Licensure or certification in most states; RDN credential issued nationally by CDR | Yes - 'dietitian' is protected; 'nutritionist' is not (voluntary UKVRN register) |
| Professional association | Academy of Nutrition and Dietetics | British Dietetic Association |
| Supplement rules | FDA, Dietary Supplement Health and Education Act (DSHEA) 1994 | Food Standards Agency, food supplements regulations |
| Published numbers |
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| Notable companies | Herbalife, Amway (Nutrilite), Abbott Nutrition, GNC, The Vitamin Shoppe, NOW Foods | Holland & Barrett, Vitabiotics, Myprotein (THG), Huel, Seven Seas, Boots |
Who uses the comparison
- Dietitians planning a move compare registration rules and credentials before they apply abroad.
- Supplement and food companies compare how each market regulates products before choosing where to launch.
- Recruiters and employers compare where qualified people are registered and how many there are.
- Students compare training routes and the professional bodies they may join.
Where the data comes from
Each row comes from the country profiles in our Global Hub. Regulators, associations and supplement authorities link to their own websites. Numbers show the publisher in brackets, and the full citation sits on the country page. Where a country does not publish a figure, it is simply not listed: we do not estimate.
Go deeper
Open either country page for the full profile: strengths, opportunities for practitioners and companies, public health priorities, events and practical notes for people moving or exporting. If you are weighing a move or a market launch, our network can arrange a business consult with a professional who knows the country.
Book a video, phone or in-person session with a professional from our network. Your result can be attached so you do not start from scratch.
