Vitamin D- Provitamins, active form, functions, Rickets, serum level, RDA, sources

Provitamins
Ergocalciferol and Cholecalciferol

transport and storage ad 25- OH Cholecalciferol

Active form- Calcitriol

Functions
on three target tissues
Intestinal cell- increases absorption of calcium
Bone- Mineralization of bones
Kidney- increases tubular absorption of calcium

increases serum calcium level

Deficiency manifestation

Rickets in children
Osteomalacia in adult

RDA- 400 IU in children, 200 IU in Adult

Sources- Sunlight, fish, egg yolk etc.

Видео Vitamin D- Provitamins, active form, functions, Rickets, serum level, RDA, sources канала Biochemistry by Dr Rajesh Jambhulkar