The significance of vitamin D in preventing fractures among over aged adults
Abstract
Vitamin D is essential to keep balance nutrition and for the maintenance of health .as well as to increase the absorption of calcium and phosphate from the gut and mineralization of bone. Solar Ultraviolet B photons (UVB 290 – 315) transform 7-dehydrocholesterol from the skin into vitamin D3 which is hidroxylated twice, first in the liver and then in the kidney tocalciferol the most active metabolite. The objective of this review is to point out the significance of vitamin D in preventing fractures among over aged adults. Through bibliographic revision was possible to recognize the high prevalence of vitamin D deficiency worldwide especially among the elderly for many reasons, low ingestion, low exposure to sunlight, decrease synthesis in the skin and diseases that disturb vitamin D metabolism. Vitamin D deficiency exacerbates osteoporosis among adults and causes the painful bone disease osteomalacia that results in bone loss and fractures. Although Brazil is considered a sunny country there are researches in São Paulo and Recife that evidence hipovitaminosis D among adults. Conclusion: As the dietary intake of the adult population seldom contain adequate Vitamin D, it is recommended to have the Nutritionist promoting educational programs as well as food enrichment with vitamin D. Enrichment with vitamin D should be incentivated in our country as one of the solutions to promote health and to prevent vitamin D deficiency among the population with higher risk, the children and the elder.
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