Probiotics and Prebiotics Directory
Probiotics are "good" bacteria that help the body's digestive tract. Prebiotics are food ingredients that help support growth of probiotic bacteria. Follow the links below to find WebMD's comprehensive coverage about what probiotics and prebiotics are and how they work.
What Are Prebiotics?
Learn about prebiotics -- their benefits and how they work, supplements and foods with prebiotics, the best prebiotics for different conditions, and possible side effects.
Probiotics for Diarrhea
Probiotics may help prevent travelers' diarrhea, diarrhea from antibiotics, and more. A guide to the best sources and kinds of probiotics.
Probiotics are living microorganisms most often used to promote healthy digestion. Get information about the types of probiotics, and their possible health benefits.
Probiotics for Digestion: Questions for Your Doctor
Find out the pros and cons of probiotics -- the "good bacteria" -- to treat or prevent digestive problems.
Probiotics and Digestive Problems
A look at how probiotics may benefit diarrhea, pouchitis, irritable bowel syndrome (IBS), and ulcerative colitis.
Why Is Kefir Good For You?
Kefir is a tangy, tart, yogurt-like drink teeming with good bacteria for your stomach.
Why Is Greek Yogurt Good For You?
Greek yogurt is blowing up the dairy case. It's creamier and more nutritious than traditional yogurt.
7 Ways to Lighten Up With Greek Yogurt
Use this yummy substitute in some of your favorite foods.
Alternative Therapies and the GI Tract
Leading GI specialist and psychiatrist, Dr. Douglas A. Drossman, offers insight on alternative therapies for digestive problems.
Video: What Are Probiotics?
People are crazy about yogurt, kefir, and other foods packed with probiotics. But what’s all the fuss about?
Slideshows & Images
Slideshow: Foods With Probiotics
Beyond yogurt, see which foods have a surprising boost from probiotics -- good bacteria that may help tame your digestive problems.
Slideshow: 8 Digestive Health Supplements
See 8 supplements to improve digestive health, including probiotics, psyllium, ginger, l-glutamine and more.
Slideshow: Lactose Intolerance -- 14 Ways to Still Love Dairy
See how certain cheeses, lactose-free milk, probiotics, and more can help keep dairy in your diet.
Slideshow: Ulcerative Colitis Diet Tips and Mistakes
See how diet can affect your ulcerative colitis. Learn what foods can aggravate it and how to get the nutrition you need.