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Herbal Supplements

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 Cancer Institute

Complementary and alternative medicine (CAM) is the term for medical products and practices that are not part of standard medical care. 

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

Find fact sheets with information about specific herbs or botanicals—common names, what the science says, potential side effects and cautions, and resources for more information.

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

The HerbList App provides research-based information about the safety and effectiveness of herbal products.

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

Summarizes scientific research on St. John’s wort for depression and suggests sources for more information.

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

Tips about the safety and effectiveness of dietary supplements for weight control.

HHS, National Institutes of Health, MedlinePlus Health Information

Provides information and resources for understanding herbal medicine. Also in Spanish.

HHS, National Institutes of Health, National Library of Medicine

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