The National Center for Complementary and Alternative Medicine (N C C A M): Part of the National Institutes of Health

NIH…Turning Discovery Into Health®

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Dietary and Herbal Supplements

A dietary supplement, as defined by the Dietary Supplement Health and Education ActA Federal law that defines dietary supplements and sets product-labeling standards and health claim limits. DSHEA defines supplements and outlines quality, safety, and efficacy regulations that are different from those for drugs. The U.S. Food and Drug Administration does not review dietary supplements for safety or effectiveness before they are sold. (DSHEA), is a product that:

Many people take dietary supplements in an effort to be well and stay healthy, and research has shown that some uses of dietary supplements are effective in preventing or treating diseases.

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