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>>> @Vitamin >>> Vitamin-D >>>
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Vitamin >>> Vitamin D

Vitamin D is created by the body when the skin is exposed to the ultraviolet
light of the sun. It is also found, although never in large quantities, in the foods
we eat. Vitamin D is essential in the processing of calcium by the body.
Deficiencies in vitamin D can lead to low blood calcium and bone-related
problems. Rickets, a disease of the bones usually occurring in children, is
caused by a vitamin D deficiency. Vitamin D has also been linked to lower
rates of colon and breast cancer.

Vitamin D can be toxic at very high levels. Too much vitamin D can cause
levels of calcium in the blood to be too high. Symptoms of this condition can
include nausea and drowsiness. In very extreme cases, kidney failure and
coma can result.

The U.S. Recommended Daily Allowance of vitamin D is 400 IU's. It is
important to note that, as we use more sunscreens and generally avoid
exposure to the sun, we may require more vitamin D in our diets to replace
what is lost through lack of sun exposure. Dietary sources of vitamin D
include fatty fish, liver and egg yolks. Most milk, and many other dairy
products, are fortified with vitamin D. Supplements are also available.

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