Herbal Supplements

Hand with herbal ingredients Botanical Dietary Supplements: Background Information

DHHS. NIH. Office of Dietary Supplements.

Provides background information about botanicals and their use, safety, and health benefits as dietary supplements. See Botanical Supplement Fact Sheets for information about specific botanical supplements.


Herbs at a Glance

DHHS. NIH. 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.


MedlinePlus: Herbal Medicine

DHHS. NIH. Medline Plus Health Information.

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


MedlinePlus: Herbs and Supplements

DHHS. NIH. National Library of Medicine.

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


Herbal Information - FNIC

USDA. ARS. NAL. Food and Nutrition Information Center.

Provides links to credible and accurate information and resources on herbals and botanicals used as dietary supplements.


St. John's Wort and Depression

DHHS. NIH. National Center for Complementary and Integrative Health.

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


Questions and Answers About Milk Thistle

DHHS. NIH. National Cancer Institute.

Learn about milk thistle, including its use, history, side effects, and results of clinical trials.


Menopausal Symptoms and Complementary Health Approaches

DHHS. NIH. National Center for Complementary and Integrative Health.

Provides basic information about menopause, summarizes research on the efficacy and safety of complementary health approaches for menopausal symptoms, and suggests sources for additional information.


Questions and Answers About Mistletoe

DHHS. NIH. National Cancer Institute.

Learn about mistletoe and its use in complementary and alternative medical approaches.


Garlic and Cancer Prevention

DHHS. NIH. National Cancer Institute.

Provides background information on garlic and its possible health benefits and roles in preventing cancer.