Hi DunnyRunner - since I'm an ignorant American, what significance does your name have?Caltrate Plus here in the States is a name brand for calcium carbonate, along with vitamin D, a little magnesium, and boron. Linda Nape can tell you the exact balance of ingredients. I've also used generic calcium citrate with vitamin D with success.I agree with your philosophy about "life's too short" - I refuse to let my IBS run my life.Welcome!------------------Fear can hold you prisoner. Hope can set you free.Missycat