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Raising vitamin D levels worldwide may prolong life
In a review of worldwide vitamin D and major disease studies, researchers estimated that by raising blood levels of vitamin D to 44 nanograms per milliliter of blood (ng/mL) from 20 ng/mL currently, annual worldwide deaths from major diseases would decrease by 20 percent, and increase average life expectancy by two years.

According to study authors, vitamin D lowers chances of—and increases longevity in—the five major disease groups that account for over half the world’s mortality rates. These include cancer, cardiovascular disease, diabetes, tuberculosis, and respiratory diseases and infections.

Doctors said to raise vitamin D levels, manufacturers should fortify foods, and people should take vitamin D supplements and get more sunlight.

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