Probiotic supplements (friendly colonic bacteria) have been shown to provide relief from abdominal pain and flatulence associated with irritable bowel syndrome.
In fact, flatulence was rapidly and significantly reduced in the group receiving probiotic supplements, compared with the placebo group.

Furthermore, at the 12-month follow-up, patients in the probiotics group maintained a better overall GI function than patients receiving the placebo.

For more information on probiotics, see Acidophilus, Flora Force, or Bifidophilus product pages in the HART Toolkit.

Sources:
HART Toolkit, copyright 2001
AM J Gastroent 2000, 95(5):1231