How to Evaluate Supplement Claims

Start with the exact claim, then ask what evidence would be needed to support that exact claim.

Check the match

Look at the studied product, dose, population, duration and outcome. Be skeptical when a broad promise rests on a mechanistic explanation or research involving a materially different intervention.

Watch disease language

Claims about diagnosing, treating, curing or preventing disease are materially different from general structure/function language. Marketing language should not be treated as medical evidence.