Calcium does not work for everyone but for a lot of us it does.Finding the right amount that helps you and being consistent is most important.You will have some gas and indigestion at first but this goes away as your body adjusts to the added calcium. Also taking calcium carbonate with vitamin D is the correct one to take for diarrhea control.It takes some a bit longer than others to see relief and I think sticking with it for a while would be good.It takes some time of playing with your dose to see what helps you.If you calcium contains magnesium get a bran that dose not if it is not helping you.Linda