Evidence-graded · Independent · Updated continuously
Supplements, graded by the evidence.
We translate the scientific literature into clear evidence ratings, surface what trusted experts actually say, and point you to brands that are tested and fairly priced.
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Supplements
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Our evidence scale
Methodology →Strong evidence
Multiple high-quality RCTs and meta-analyses converge on a clear effect.
Moderate evidence
Reasonable RCT or meta-analytic support, with some inconsistency or limitations.
Limited evidence
Mostly small trials, observational data, or mechanistic reasoning.
Insufficient evidence
Claims outpace the data; primarily preclinical or anecdotal support.