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

Información en Español

Health Topics A-Z

Probiotics

Share:
email
Twitter
Facebook
AddThis
Color enhanced scanning electron micrograph (SEM) of the bacteria Lactobacillus

Photo Credit: SciMAT/Photo Researchers, Inc.

Probiotics are live microorganisms (in most cases, bacteria) that are similar to beneficial microorganisms found in the human gut. They are also called “friendly bacteria” or “good bacteria.” Probiotics are available to consumers mainly in the form of dietary supplements and foods.

This page last modified September 24, 2017