Скачать или смотреть Vitamin D/ Chemistry and Functions/Daily Requirement

Vitamin D is a fat soluble vitamin. The inactive natural precursors of Vit.D are known as Provitamins. These are; Ergosterol ( Provitamin D2) ,and 7-dehydrocholesterol (Provitamin D3).

Transformation from inactive Provitamin to active vitamin is accomplished by the UV rays.
Ergosterol --- Ergocalciferol ( Vitamin D2)

7- dehydrocholesterol --- Cholecalciferol (Vitamin D3)

Biologically active firm of vitamin D is Calcitriol.

Deficiency of vitamin D produces Rickets in growing children and Osteomalacia in adults and also Renal osteodystrophy. If taken in extremely large doses, it will lead to hypervitaminosis D

Vitamin D/ Chemistry and Functions/Daily Requirement #vitamind #rickets #ricket #osteomalacia #vita