I have just begun using potato starch (3 days so far) and the results seem to be beneficial (better sleep, weight loss plateau seems to be breaking - we'll see), if this does indeed prove beneficial, I'm wondering if I should suggest this to my husband. I understand that RS works in the colon. He doesn't have a colon - due to Crohn's disease it was removed. He now only has a small intestine that empties through an ostomy into a bag. We are trying to do paleo, with alternating low calorie days, because we both have a weight problem that paleo alone did not seem to help (he should lose about 20 pounds, I should lose at least 50 pounds). Does anyone know if Potato Starch would cause a problem for him?