The Role of Vitamin D, and What Deficiency Can Cause!Click Here, for the a TOP RATED Vitamin D Supplement.
Vitamin D regulates the calcium and phosphorus levels in the blood by promoting their absorption from food in the intestines, and by promoting re-absorption of calcium in the kidneys. It promotes bone formation and mineralization and is essential in the development of an intact and strong skeleton. However, at very high levels it will promote the resorption of bone. It inhibits parathyroid hormone secretion from the parathyroid gland. It affects the immune system by promoting phagocytosis, anti-tumor activity, and immunomodulatory functions.
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Deficiency can result from inadequate intake coupled with inadequate sunlight exposure, disorders that limit its absorption, conditions that impair conversion of it into active metabolites, such as liver or kidney disorders, or, rarely, by a number of hereditary disorders.The lack of it can also result in impaired bone mineralization, and leads to bone softening diseases,rickets in children and osteomalacia in adults, and possibly contributes to osteoperoris.
It also regulates the expression of genes associated with cancers and autoimmune disease by controlling the activation of the receptor (VDR), a type 1 nuclear receptor and DNA transcription factor. Research has indicated that its deficiency is linked to colon cancer and more recently, to breast cancer. Conflicting evidence links deficiency of it to other forms of cancer.
Click on the Links Below for Information on Other Vitamins Vitamin C, plays a role in the critical reactions that assemble collagen in the tissues. Find out Why Vitamin E is one of the most powerful antioxidants known. Vitamin K is an essential nutrient required for the normal biosynthesis and activation of several key proteins. Find foods high in vitamin k. Click Here for the TOP RATED NUTRTIONAL SUPPLEMENTS!
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