I suffer from a very severe form of IBS. First I did the IBS Audio 100 hypnotherapy cd's, then I changed my diet (to low fat, no red meat and no dairy for ex), and after that I began drinking this fiber daily... and these three things have completely transformed my life! I travel internationally again, I also began dating again (am getting married in a few months time!) and I am starting my own business soon, things I never believed in less than five years ago! I still struggle sometimes, but it is a tad bothersome sometimes my cramps, not the end of the world. I do not spend much mental energy on them... I am back to who I used to be! I highly recommend anyone with digestive issues to try this fiber for themselves!