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Dietary Supplements

Find general information and resources on dietary supplements below.

What dietary supplements help athletes perform better? Should you take sports supplements? Answer these questions and more using our resources.

Get information on popular types of herbal supplements, including what they are used for, if they work, and what to avoid.

HHS, National Institutes of Health, National Center for Complementary and Integrative Health

Links to information to help understand dietary supplements, find research resources and clinical trials, and more.

HHS, National Institutes of Health, National Library of Medicine

Understand dietary supplements with information and resources that cover a variety of related topics. Also available in Spanish.

HHS, National Institutes of Health, Office of Dietary Supplements

This fact sheet describes what’s known about the safety and effectiveness of many ingredients that are commonly used in weight-loss dietary supplements.

HHS, National Institutes of Health, National Center for Complementary and Integrative Health

This interactive tool was designed to help you better understand how medications and supplements can interact in potentially harmful ways, and why it's important to speak with your doctor about supplements.

Department of Defense, Uniformed Services University, Consortium for Health and Military Performance

Department of Defense dietary supplement resource for the military community, leaders, healthcare providers and DoD civilians.