Hi,I read the article "Gastrointestinal Motility Disorders"from UNC about IBS.It appears to me there is a link between D after meal and Bacaterial overgrowth. Anybody agree? thanks=========================================== Small Bowel Bacterial OvergrowthThis means that there are too many bacteria in the upper part of the small intestine. This leads to symptoms of bloating, pain, and diarrhea that occur immediately after eating because the bacteria in the intestine begin to consume the food in the small intestine before it can be absorbed. These bacteria give off hydrogen and other gases which cause bloating and diarrhea. Small bowel bacterial overgrowth is a result of abnormal motility in the small intestine; when the housekeeper waves do not keep the bacteria swept out because the contractions are too weak or disorganized, the bacteria grow out of control. Bacterial overgrowth is most easily detected by the hydrogen breath test: The patient drinks a sugar solution and breathes into a bag every 15 minutes for two hours. If the bacteria are present in large amounts in the small intestine, they give off hydrogen, some of which is absorbed into the blood, carried to the lungs, and breathed out where it can be detected.