I have had IBS - D on and off for years. Tried it all. Last few months have been bad, no relief tried Levsbid, hated how it made me feel. I am petite and 40, so needed to start taking calcium anyway. Well, from the first day EVERYTHING has changed. I have had NO D at all, normal every time, even during my monthly cycle. I am taking citracal twice a day. No meds at all anymore. Thank you so much for posting this Linda. My life has changed, I am happy now!!! Lisa