Sources of Science
It’s important to look for reliable sources of information on dietary supplements so you can evaluate the claims that are made about them. The most reliable information on dietary supplements is based on the results of rigorous scientific testing.
To get reliable information on a particular dietary supplement:
Ask your health care providers. Even if they don’t know about a specific dietary supplement, they may be able to access the latest medical guidance about its uses and risks.
Look for scientific research findings on the dietary supplement. The National Center for Complementary and Integrative Health (NCCIH) and the National Institutes of Health (NIH) Office of Dietary Supplements (ODS), as well as other Federal agencies, have free publications, clearinghouses, and information on their Web sites.