Functional Diagnostic Nutrition (FDN) is advanced functional lab training that teaches you how to interpret functional labs — and run them without a medical license , so you can find the root cause of your clients' symptoms instead of guessing.
Built for health coaches, nurses, nutritionists, personal trainers, and wellness practitioners ready to move past generic protocols and deliver repeatable client results.
Join 5,000+ FDN practitioners worldwide. Through our Medical Director Program (MDP) you get access to 70+ functional labs without a license, plus clinical consults with industry-leading experts and a community of 6-figure practitioners. Founded by Reed Davis 15+ years ago.
▶ Watch the 'Start Here' playlist to see how to read functional labs and find root causes →
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