Conversely, these vitamin D metabolites also assist in mobilizing calcium and phosphate from bone and likely increase the reabsorption of calcium and perhaps also of phosphate via the renal tubules. These vitamin D metabolites subsequently facilitate the active absorption of calcium and phosphorus in the small intestine, serving to increase serum calcium and phosphate levels sufficiently to allow bone mineralization. The first hydroxylation of vitamin D3 cholecalciferol (or D2) occurs in the liver to yield 25-hydroxyvitamin D while the second hydroxylation happens in the kidneys to give 1, 25-dihydroxyvitamin D. The in vivo synthesis of the predominant two biologically active metabolites of vitamin D occurs in two steps. Vitamin D acts as a hormone and increases reabsorption of Calcium and Phosphorus by the kidneys and increased bone turnover. It is also necessary for utilization of both Calcium and Phosphorus. Vitamin D is essential for normal bone growth and development and to maintain bone density. The tablets are available on prescription, or you can buy them without a prescription at a pharmacy.Calciferol Injection, Drops, Liquid, Oral Capsule, Oral Solution You will be recommended to take a supplement such as calcium and ergocalciferol tablets routinely. Your body needs adequate supplies of vitamin D in order for it to absorb the calcium that you eat or drink in your diet.Ī mild lack of calcium and vitamin D may not cause symptoms but it can result in an increased risk of 'thinning' of the bones ( osteoporosis). Foods that contain vitamin D are oily fish (such as sardine, herring, salmon and tuna) and eggs. Vitamin D is mostly made in your skin by exposure to sunlight but you also get some from your diet. (Ergocalciferol is also called vitamin D 2 or calciferol) Ĭalcium and vitamin D are both important for healthy, strong bones. To promote healthy bones and to prevent osteoporosis
0 kommentar(er)
