Dvitaminban
Dvitaminban, commonly known as vitamin D, is a fat-soluble secosteroid essential for calcium and phosphate metabolism and bone health. It exists in two major dietary forms: vitamin D2 (ergocalciferol) and vitamin D3 (cholecalciferol). D3 is produced in the skin from 7-dehydrocholesterol upon exposure to UVB radiation, while D2 is derived from plant sources and fungi.
After absorption, Dvitaminban is transported to the liver where it is hydroxylated to 25-hydroxyvitamin D [25(OH)D],
Functions extend beyond bones to influence immune function, muscle health, and cell growth regulation, though evidence
Deficiency can lead to rickets in children and osteomalacia in adults, and may be associated with increased
Intake recommendations vary by country; general guidance often suggests daily intakes of a few hundred to about