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Men with low concentrations of vitamin D have higher risk of heart attack

The good news just keeps on coming for vitamin D. A new study of men finds that getting plenty of vitamin D seems to lessen the risk of having a heart attack.

Researchers tracked the effect of vitamin D levels in blood by testing blood samples collected from 1993 to 1995 from more than 18,000 men who were part of a long-term study of physicians.