Calcium has been cleared of any harm to the heart, according to a review of studies by researchers at the Mayo Clinic, University of California San Francisco, and both Columbia and Johns Hopkins Universities, and commissioned by the National Osteoporosis Foundation. In the past decade, a few studies have raised questions about calcium and its ability to possibly raise heart disease risk or stroke. But, this review of 31 studies found that the evidence on calcium supplements does not support this connection and also confirms that calcium-rich foods are safe for heart health.
In Perspective: Turn to food first for you daily quota of calcium. If you don’t get 1,000 to 1,200 milligrams of calcium every day from milk or other calcium-rich foods, then consider supplements. A low supplement dose of 500 milligrams to fill in the gaps on the days when you don’t eat perfectly should be enough. The upper limit for safely with calcium, from both food and supplements, is 2,000 to 2,500 milligrams a day.
Elizabeth Somer, M.A.,R.D.
Kopecky S, Bauer D, Gulati M, et al: Lack of evidence linking calcium with or without vitamin D supplementation to cardiovascular disease in generally healthy adults. Annals of Internal Medicine 2016; October 25th.