In just a dozen years, expert panels shifted from suggesting widespread calcium supplementation to prevent osteoporosis3150 to telling patients “do not supplement,”3151 the suggestion still in effect for most people today.3152 I detail what happened in my video see.nf/calciumsafety. In short, calcium supplements appear to raise the risk of heart attacks and strokes3153 by leading to unnaturally large, rapid, and sustained calcium levels in the blood3154 that increase the risks of abnormal clotting.
