Reference
Last updated: September 1, 2026
The general health information discussed on this Site draws on publicly available scientific and regulatory literature. This page tells you where to look it up yourself.
Nothing listed here is an endorsement of any product. No institution, database, agency or
researcher referenced on this page has reviewed, approved, sponsored or is affiliated
with the product presented on this Site.
Where to verify the underlying science
- PubMed — U.S. National Library of Medicine, National Institutes of Health. The primary public index of peer-reviewed biomedical literature. pubmed.ncbi.nlm.nih.gov
- NIH Office of Dietary Supplements — fact sheets on individual ingredients, written for both consumers and health professionals. ods.od.nih.gov
- National Center for Complementary and Integrative Health — NIH reviews of supplement evidence. nccih.nih.gov
- ClinicalTrials.gov — registry of clinical studies, U.S. National Library of Medicine. clinicaltrials.gov
- U.S. Food and Drug Administration — Dietary Supplements — the regulatory framework these products fall under. fda.gov
How to read what you find
Research on an individual ingredient is not research on a finished product. A study showing an effect in a laboratory, in animals, or in a small group of people does not establish that a supplement containing that ingredient will produce the same effect in you. Read the study population, the dose and the duration before drawing a conclusion.
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If you want the specific sources behind a particular statement made on this Site, write to our support address and we will point you to them.