After visiting this web page I went out and bought the Caltrate (in the purple box). I am taking 1/2 a tablet 2 times a day. It seems to be helping so far (it has been a week). However, I still experience some "gas" pains after eating. I am always afraid when these come on that I am going to have to run to the bathroom any minute. Does anyone else experience this even on the Caltrate? Also, for the people that are taking the Caltrate for D, do you experience normal bowel movements now?Thanks for any responses!!