ODS.od.nih.gov provides evidence-based summaries about dietary supplements.
The Office of Dietary Supplements (ODS), which is part of the U.S. National Institutes of Health, publishes the website. Content is by the ODS and other federal agencies.
Information includes a video introducing the ODS website; Fact Sheets for an extensive list of vitamins, minerals, herbs, botanicals and probiotics; Fact Sheets for specific purposes, such as athletic performance or weight loss; Fact Sheets for topics involving supplements in general; a Dictionary of dietary supplement terms; and a database of labels for dietary supplements sold in the U.S.
Tips for use:
– The website includes information in Spanish.
– The Fact Sheets page gives an option to filter for just ODS resources, excluding content from other federal agencies.
Reviewed October 2025