Probiotics & Irritable Bowel Syndrome

• What are probiotics?

  The World Health Organization defines probiotics as "live microorganisms which, when administered in adequate amounts, confer a health benefit on the host."

• Significance

  Probiotics, or "friendly bacteria" as they're sometimes called, are naturally found in your gut and help keep bad bacteria in check.

• Prevention/Solution

  Some clinical trials have shown that certain probiotics can improve IBS symptoms.

• Studies

  A 2005 study published in the journal Gastroenterology showed that patients who drank a milk-based beverage with the probiotic Bifidobacterium infantis 35624 experienced dramatic reduction in abdominal pain, bloating, and bowel regularity, compared to two control groups who were given a different species of probiotic or a placebo. (Source: "Lactobacillus and bifidobacterium in irritable bowel syndrome: symptom responses and relationship to cytokine profiles" by L. O'Mahony, J. McCarthy, et al).

• Considerations

  When selecting a probiotic supplement, look for a reputable brand that has been clinically tested. Probiotic supplements are available at health food stores.

• Buying a Probiotics Supplement

  Look for brands that: - Are kept in the refrigerated section. - Identifies the specific genus, species, and strain. (For example: "Bifidobacterium infantis 35624" rather than just "Bifidobacterium"). - Lists the CFU (colony-forming unit) number in the billions, per dosage or serving. - Includes an expiration date (probiotics are living microbes and can't survive indefinitely).

References & Resources

• "The Probiotics Revolution" by Gary B. Huffnagle, Ph.D., with Sarah Wernick
• ConsumerLab lists probiotic brands that have passed its testing program