Breaking News

Large Study Reaffirms Calcium Supplementation
 Safe for Women's Heart Health

June 10, 2014

Prospective cohort counters studies from a research group in New Zealand that suggested calcium supplements may be associated with increased cardiovascular disease risk.

A new study published in the May issue of the peer-reviewed scientific journal, Osteoporosis International, found no independent associations between supplemental calcium intake and risk of incident coronary heart disease (CHD) and stroke. This prospective cohort study of 74,245 women in the Nurses’ Health Study, with 24 years of follow-up, counters studies from a research group in New Zealand that suggested calcium supplements may be associated with increased cardiovascular disease (CVD) risk.

The authors noted, “In this large-scale, long-term prospective cohort study in women, calcium supplement use was inversely associated with the risk of CHD. Our findings do not support an increased risk of CVD with calcium supplement use in women.”

In addition, the study findings actually suggested that calcium supplements are associated with decreased risk of cardiovascular disease. The researchers identified some potential limitations around this finding and advised more research would be needed to confirm it.

This is the fourth study in the past 18 months to reaffirm calcium’s safety, in line with the total body of scientific research.

Duffy MacKay, ND, senior vice president, scientific & regulatory affairs, CRN, said, “Calcium is an essential nutrient most widely used for its bone health benefits, and government data show most Americans don’t get enough. We encourage continued studies on calcium’s safety and benefits, but this study should help women feel confident that calcium supplements are an appropriate choice if they are not getting enough from food alone.”

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