Heart-Harming Supplements? Calcium Pills Linked to Artery Buildup

People who take calcium supplements may be at increased risk for developing buildups of plaque in their arteries, which is a sign of heart disease, a new study found. However, people who consume a lot of calcium through the food they eat may actually be at a lower risk of heart disease, the study showed. The findings add to a growing body of evidence that some dietary supplements, such as calcium supplements, may have harmful effects.