Researchers at the Harvard School of Public Health and Brigham and Women’s Hospital, Boston, analyzed medical records and blood samples from 454 men, aged 40 to 75, who had a nonfatal heart attack or fatal heart disease, and compared them to 900 men who had no history of cardiovascular disease.
They concluded that vitamin D deficiency may increase the risk of heart attack in men. Men with a vitamin D deficiency (15 nanograms or less per milliliter of blood) had a higher risk of heart attack than those with a sufficient amount of vitamin D (30 nanograms per milliliter of blood or more).
The findings appear in the June 9 issue of the Archives of Internal Medicine.
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