Yudaman23, I'm not sure you can say that most IBS symptoms are caused by bacteria in the intestinal tract. There may be a few or many causes of IBS. A recent suggestion was that children with "IBS-like" symptoms be screened for celiac disease. That is certainly not caused by bacteria. It's also possible that adults should also be screened for celiac disease or non-celiac-gluten-sensitivity, too, since that seems to be turning up more and more.
Yes, SIBO may produce a subset of IBS problems, but not all.View Thread