German researchers have found that calcium supplements are associated with almost double the risk for a heart attack, compared to those who did not supplement. Nearly 24,000 residents aged 35 to 64 were followed for 11 years. Those who took calcium supplements had a 1.88 increase in risk for heart attack. Calcium from dietary sources did not increase risk.
PositiveTip: Calcium supplements should only be taken with caution. It is best to get this nutrient from a balanced diet.