I too have been bothered with IBS most of my life. Have you ever heard of Heather's Tummy Fiber? It has been a life-saver for me. She has a website and you can sign up for a newsletter to tell what the latest research says about IBS. I order from both Amazon and Iherb.com. I can eat many foods that would bother other suffers of IBS, but I carefully read all labels, trying to avoid MSG, Sulfites, and anything that says "Natural Flavors", which can hide MSG.