Beneficial bacteria introduced into the gastrointestinal tract in order to support good digestion and to help control pathogenic organism.
Regular Websites
Discusses the basics about probiotics, including what they are, what the risks and side effects are, and facts about and links to scientific research on the topic. - An Introduction to Probiotics
http://nccam.nih.gov/health/probiotics/
Instructs the reader as to the healing properties of probiotics, why they work, and how to choose a type. - Healing With Probiotics
http://www.healingdaily.com/detoxification-diet/probiotics.htm
Mayo Clinic website's article about what probiotics do, how they are beneficial, and scientific facts about then, - Probiotics: What Are They?
http://www.mayoclinic.com/health/probiotics/AN00389