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Index/Organizations/Functional Diagnostic Nutrition

Functional Diagnostic Nutrition

Fact-Checks

3 results
Dec 20, 2025
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What is the Functional Diagnostic Nutrition (FDN) certification and how is it regulated?

Functional Diagnostic Nutrition (FDN) is a private, for‑profit training and certification program that teaches health coaches and allied wellness professionals to interpret “functional” lab tests and ...

Jan 17, 2026

Are there peer‑reviewed clinical studies validating Functional Diagnostic Nutrition’s testing methodology?

Functional Diagnostic Nutrition (FDN) is a commercial training and methodology that promotes “functional lab testing” to find root causes of chronic symptoms, but the documents provided contain market...

Jan 17, 2026

How do professional associations like NANP and AADP evaluate and endorse education programs like FDN?

Professional associations such as the National Association of Nutrition Professionals (NANP) and the American Association of Drugless Practitioners (AADP) operate formal, documented processes to revie...

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