Biochemical functions of vitamin ‘D’

1) vitamin D increases the absorption of calcium and phosphorous from the intestine and maintain their regulated supply to body fluids.
2) It increases the calcification of bones in body adults and growing childrens.
3) It increases the excretion of phosphate by kidney and lowers the serum phosphate concentration.
4) It increases the citrate level of blood, bone, kidney and heart tissue as well as the excreation of citric acid.
5) It decreases th PH in the lower intentinal tract which helps in increasing the absorption of calcium and phosphorous.