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Freitag, 14. Februar 2014

Facts You Should Know About Vitamin D
Von jasonburchem, 21:32

Vitamin D, medically and scientifically known as caciferol, is one of the fat-soluble vitamins that is also considered a hormone as it assists in keeping the calcium and phosphorus in the blood at normal levels. There are five forms of vitamin D: D1 (a molecular compound of ergocalciferol and luministerol), D2 (a molecular compound of eergocalciferol and calficerol), D3 (cholecalciferol), D4 (dihydroergocalciferol) and D5 (sitocalciferol).

Unlike other vitamins, vitamin D can be produced by the body when the skin is exposed to sunlight. When the skin is exposed to the sun, the ultraviolet rays trigger the production of vitamin D in the skin. After only a few minutes of sunlight exposure, the skin can produce about 20,000 IU (international units) of vitamin D without any danger of toxicity. However, prolonged exposure to sunlight will not increase vitamin D levels or cause vitamin D toxicity. Instead, overexposure to sunlight will destroy vitamin D. This is because the body has a self-regulating mechanism that detects when the body cannot handle more vitamin D.

Vitamin D can also be acquired from food sources such as fortified milk, dark green vegetables, butter, fish like salmon and tuna, eggs, liver and cereals. However, the sun is considered the best source of vitamin D. Sunlight exposure 10 to 15 minutes a day at least twice a week is recommended. A deficiency of vitamin D can lead to rickets in children and osteomalacia in adults.

Vitamin D is stored in the bones, spleen, brain and liver. During the summer, the body stores up vitamin D and utilizes it during the winter months. This is what makes vitamin D different from the other vitamins. Vitamin D can be stored in the body today and used up later on, especially when there is not enough sunlight in the day.

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