Vitamin D deficiency occurs when the body does not get enough vitamin D. Most people can get enough Vitamin D by spending less than an hour per day in the sun. Milk is also fortified with Vitamin D.
A deficiency causes soft bones in younger people and contributes to osteoporosis in older people since Vitamin D is necessary to help the body use calcium to build strong bones.
Vitamin D deficiency is a condition where the blood serum levels of vitamin D’s storage form, 25(OH)D or calcidiol, are lower than that which the body needs to properly maintain health.
Vitamin d is a fat soluble vitamin. It helps your body absorb calcium and phosphorus. Some foods contain vitamin d, but, we also absorb it in our skin when we're exposed to sunlight.
Vitamin D is a fat-soluble vitamin that is naturally present in very few foods, added to others, and available as a dietary supplement.It is also produced endogenously when ultraviolet rays from sunlight strike the skin and trigger vitamin D synthesis. Vitamin D obtained from sun exposure, food, and supplements is biologically inert and must undergo two hydroxylations in the body for activation.
Vitamin D is a fat-soluble vitamin found in few foods. The body, however, can create vitamin D from exposure to the sun’s ultraviolet (UV) rays. In fact, sunshine is a significant source of vitamin D because UV rays trigger synthesis of the vitamin in the skin.
Once vitamin D is produced in the skin or consumed from food, it is sent to the liver and kidneys to be converted into its active form. Since vitamin D can be obtained from the sun, it would seem that most people should have adequate levels in the body. Unfortunately the elderly, darkly pigmented individuals, infants, and persons living in northern latitudes (such as Ohio) generally have difficulty creating vitamin D or don’t receive enough year-round sun exposure to obtain adequate levels.
And since the only major food sources of vitamin D in the diet are fatty fish and fortified foods (see table below), few Americans are consistently getting enough of this important vitamin. Although the greatest known risk of vitamin D ... more.
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