Intakes of calcium above the recommended daily levels may reduce the risk of dying
from heart disease and cancer by 25 per cent, says a new study from Sweden.
Average daily intakes of 1,953 m of the mineral were also associated with a non-significant lower risk of mortality from only heart disease,
compared to average daily intakes of 990 mg per day, according to findings published in the American Journal of Epidemiology.
Recommended daily intakes of calcium for people between 19
and 50 years of age are 1,000 mg for both men and women,
according to the US National Institutes of Health (NIH).
On the other hand, intakes of magnesium were not associated
with mortality from all-causes, heart disease or cancer, report
researchers from the Karolinska Institutet.
The researchers analysed data from 23,366 Swedish men aged
between 45 79, non of whom used dietary supplements. Between
1998 and the end of 2007, they documented 2,358 deaths from
all causes, which included 819 deaths from cardiovascular disease
and 738 from cancer. The highest average intakes, almost double
the recommended levels, were associated with a 25 per cent
reduction in so-called all-cause mortality, compared with the lowest
average intakes, said the researchers.
Magnesium intakes up to about 523 milligrams per day were
not associated with any modifications to the risk of all-cause,
Cardio Vascular Disease, or cancer mortality, they added.
"This population-based, prospective study of men with relatively
high intakes of dietary calcium and magnesium showed that
regular intake of calcium above that recommended daily may
reduce all-cause mortality," they concluded.
The findings relating to heart disease appear to be inline with
findings from other studies, which have reported that the mineral
may lower blood pressure and reduced the risk of hypertension.
Various studies have also linked calcium to reduced risks of
colorectal (when combined with vitamin D) and prostate cancer.
However, the new study found no significant relationship between
calcium intakes and the risk of mortality from cancer.
Source: American Journal of Epidemiology
Published online
"Dietary Calcium and Magnesium Intake and Mortality:
A Prospective Study of Men"
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