Find general information and resources on dietary supplements below. Also see:
Links to information to help understand dietary supplements, find research resources and clinical trials, and more.
Understand dietary supplements with information and resources that cover a variety of related topics. Also available in Spanish.
Find resources for over 100 herbs and supplements organized alphabetically.
Read answers to frequently asked questions on 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.
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 dietary supplement resource for the military community, leaders, healthcare providers and DoD civilians.
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.
Learn about the supplement label, ingredients, and health claims.
Find information on the vitamins and minerals the body needs to work best, and tips on supplement safety.