National Center for Complementary and Integrative Health (NCCIH)
NIH…Turning Discovery Into Health

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Health Information


Featured Health Topics

Hepatitis C

Milk Thistle

Can any complementary health approaches help treat hepatitis C? Find out here.

Autism Spectrum Disorder

father and son

ASD refers to a complex group of generally lifelong developmental disorders, usually diagnosed in childhood. Find information and links to resources here.

Seasonal Allergies

Under a moderately high magnification of 888x, this scanning electron micrograph (SEM) revealed some of the morphologic ultrastructural surface details of one of the very small flower buds clustered in the center of a white dogwood flower, Cornus florida.

Do complementary health approaches, like neti pots and the herb butterbur, help relieve hay fever? Are they safe? Visit this page to find out.

Health Topics A–Z

Be an Informed Consumer

This section covers issues to consider as well as information about dietary and herbal supplements.

Safe Use of Complementary Health Products and Practices

It is important to consider safety before using complementary health products and practices.

How To Find a Complementary Health Practitioner

NCCIH does not provide referrals or care for the general public. These resources, however, may help you find a practitioner.

Know the Science

These interactive modules will help you better understand complex scientific topics relating to health research so you can make well-informed decisions about your health.

For Health Care Professionals

Online resources and information about integrative medicine for health care professionals. Includes evidence-based reviews, clinical practice guidelines, and more.


Video, image, and audio resources from NCCIH.

This page last modified January 29, 2015