Probiotics are "live microorganisms which when administered in adequate amount confer a health benefit on the host (FAO 2001)."
This definition came from a consensus group of experts convened by the FAO in 2002 (PDF, page 5). Through the years, many other definitions have been suggested, but this definition from the FAO group seems the most encompassing.
Check out the latest articles and reports on probiotics In The News, in our featured Clinical Study Highlight and on our Resources page.
Scientists are learning more each day about the role of microbes in keeping people healthy and the multitude of health benefits associated with consuming the right type and levels of probiotic microbes.
Research has suggested that probiotic bacteria can:
- Help reduce the risk of certain diarrheal illnessesref
- Assist lactose intolerantref people with lactose digestion
- Enhance the immune functionref
Some preliminary studies also report that certain probiotics can play a role in reducing the development of allergy in children, decreasing Helicobacter pylori colonization of the stomach, helping patients cope with side effects of antibiotic therapy, managing relapse of some inflammatory bowel conditions, decreasing the risk of certain cancers, decreasing dental-caries-causing microbes in the mouth, and keeping healthy people healthy.
See Probiotics Basics for this and more.




