The functions of the vitamins are given below.
(i) Vitamin A
It promotes growth.
(ii) Vitamin D
It helps the body absorb calcium. It helps build bones and keep bones strong and healthy.
(iii) Vitamin E
It is antisterlity factor. It is necessary for the fertility of the male and birth process of the female.
(iv) Vitamin K
it is indirectly necessary for normal blood coagulation. its deficiency delays the coagulation period of blood.