Thank you Sarah for posting this information. I was having an awful time with gas and after reading your post, I decided to stop the Acacia fiber and go back to Benefiber. No changes so I stopped taking the soluble fiber supplements altogether. Instant relief! It's been five days now and gas has been non-existent! After visiting the SCD sites, I've decided to go back to the low carb diet I had been on for a number of years for weight loss. Apparently my body just doesn't deal well with carbs. I will continue to practice a number of the things that I've learned on this site such as eating smaller amounts of food more often and not letting myself get too hungry. I'm also using the Hypnotherapy Program and my mental state is improving daily. Thank you again for bringing this other way of dealing with IBS to my attention.