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General Information and Resources for Dietary Supplements

HHS. National Institutes of Health. Office of Dietary Supplements.

Review this fact sheet on current data regarding use of vitamin C, zinc, and other dietary supplements for COVID-19. This resource is being shared for information purposes only.

USDA. Agricultural Research Service. and DHHS. NIH. Office of Dietary Supplements.

The Dietary Supplement Ingredient Database (DSID) provides estimated levels of ingredients in dietary supplement products sold in the United States.

DHHS. NIH. Office of Dietary Supplements.

Search online for manufacturers' complete label information for a selection of on-market and off-market dietary supplement products. Find product information, dietary supplement facts, label statements, and contact information.

DHHS. NIH. Office of Dietary Supplements.

Mission is to strengthen knowledge and understanding of dietary supplements by evaluating scientific information, stimulating and supporting research, disseminating research results, and educating the public.

DHHS. NIH. Office of Dietary Supplements.

Evidence-based summaries for health professionals and consumers on vitamins, minerals, herbs, and other ingredients.

U.S. National Library of Medicine           

Browse dietary supplements and herbal remedies to learn about their effectiveness, usual dosage, and drug interactions.