Fat soluble vitamins are:
(i) Vitamin-A: Beta-carotene is converted into vitamin-A. Natural vitamin-A is available in liver, milk, ghee, eggs etc. Deficiency of vitamin-A causes dry skin, acne and stunted growth. It maintains the normal functions of the mucous membrane. Beta-carotene causes phototropism. Rhodopsin helps in normal vision of the eye.
(ii) Vitamin-D : Natural vitamin-D is found in liver, ghee, fish oil and eggs. It increases intestinal absorption of calcium and phosphorus. It affects bone mineral deposition. Lack of this causes bone disease.
(iii) Vitamin-E : Vitamin-E is an important antioxidant. Vitamin-E is found in vegetable oils, nuts, seeds, whole grains and wheat. Vitamin-E protects cells from the effects of oxidative damage. Dr. Siddiq Publications
(iv) Vitamin-K : Vitamin-K is found in dark green vegetables. It helps in blood clotting.