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Updated 07 November 2013

The sun and vitamin D

Most of the vitamin D your body uses is made under your skin when you’re exposed to the sun, but you also get it from food.

Vitamin D (also called calciferol) is a fat-soluble vitamin, which acts as a hormone. This means that it’s made in one place in the body but used elsewhere.

Low vitamin D levels have been linked to an increased risk of osteoporosis, high blood pressure, diabetes and cancer. Recently, researchers have found an association between vitamin D levels and how well the lungs work.

 
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