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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.

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Thumbnail: Ulcerative Colitis Treatment: Can Probiotics Help?

To ease the discomfort of ulcerative colitis, many people are trying probiotics. Do probiotics help? Here are the pros and cons.

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