Boston, MA (PRWEB) February 26, 2013
Doctors Health Press, a division of Lombardi Publishing Corporation and publisher of various natural health newsletters, books, and reports, including the popular online Doctors Health Press e-Bulletin, is reporting on a new study out of Switzerland finding that, for women especially, high intakes of calcium are linked with a higher risk of death from all causes, and from heart disease in particular.
As Doctors Health Press e-Bulletin (http://www.doctorshealthpress.com/women’s-health/why-women-shouldnt-go-overboard-with-calcium) notes, calcium is critical for many reasons, but people don’t necessarily know about what too much calcium can do—especially for women. In the U.S., 60% of middle-aged and older women take calcium supplements. Before this study, taking these supplements was deemed the best health advice; but now, it is known that overdoing it with calcium puts one at risk of heart disease and stroke. This study is one of just a few that have looked into this matter.
As the article “Why Women Shouldn’t Go Overboard with Calcium” reports, in Sweden, researchers studied over 61,000 women for an average of 19 years, taking data from death registries and data on supplements and diets. The lowest calcium intake was 572 milligrams (mg) a day (e.g. five slices of cheese) and the highest was 2,137 mg.
The Doctors Health Press e-Bulletin article explains that over the two decades of follow-up, nearly 12,000 women died: 3,862 of them (32%) from cardiovascular disease; 1,932 (16%) from other forms of heart disease; and 1,100 (eight percent) from stroke. Those with a dietary intake of calcium—over 1,400 mg a day—had the highest rates of all-cause death and heart disease. Conversely, women getting less than 600 mg a day also faced higher death rates.
According to the article, researchers found that the right amount of calcium lies in the middle. Women with a high intake (over 1,400 mg/day) were more than twice as likely to die compared with women with a 600–999 mg/day calcium intake. What happens is that diets very low or very high in calcium can start dangerously fluctuating blood levels of calcium over time.
But as Doctors Health Press e-Bulletin concludes, researchers reported the main problem is in adding supplements when a person may not have to. The researchers suggest that, to prevent bone fractures, women with a low intake of calcium should take supplements. But people consuming satisfactory amounts of calcium (around 1,000 mg/day) may not need supplements at all.
(SOURCE: “Risk of cardiovascular death doubled in women with high calcium intake: High risk only in those taking supplements as well,” British Medical Journal, published online February 12, 2013.)
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