An official website of the United States government.
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.
General Information and Resources for Dietary Supplements
HHS, NIH, National Center for Complementary and Integrative Health
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.
Uniformed Services University, Consortium for Health and Military Performance
OPSS educates service members and retirees, their family members, leaders, healthcare providers, and DoD civilians about dietary supplements and gives them tools to be informed supplement users—or non-users.
DHHS. NIH. Office of Dietary Supplements.
Evidence-based summaries for health professionals and consumers on vitamins, minerals, herbs, and other ingredients.
DHHS. NIH. Office of Dietary Supplements.
This fact sheet provides information on weight-loss dietary supplements, including summaries of research on the safety and efficacy of several of the most commonly used ingredients in these products.
U.S. National Library of Medicine
Browse dietary supplements and herbal remedies to learn about their effectiveness, usual dosage, and drug interactions.
DHHS. FDA. Center for Food Safety and Applied Nutrition.
A general overview of dietary supplements and their regulation by the CFSAN. Other resources on dietary supplements from CFSAN include:
- Dietary Supplements: What You Need to Know. Also available as a PDF in English (PDF|230 KB) and Spanish (PDF|184 KB).
- Label Claims for Conventional Foods and Dietary Supplements
- Q&A on Dietary Supplements
- Responses to Questions About Codex and Dietary Supplements