Fat Soluble Vitamins
Vitamins A, vitamin D, vitamin E and vitamin K are relatives that have two characteristics in common: All dissolve in fat, and all are stored in fatty tissues.
But like members of the family, they also have distinct personalities. One keeps the skin moist. Another protects bones. A third keeps reproductive organs purring happily. And the fourth enables to make us special proteins.
Vitamin A
Vitamin A is the moisturizing nutrient that keeps your skin and mucous membranes smooth and supple.
Vitamin A is also the vision vitamin, a constituent of 11-cis retinol, a protein in the rods (cells in the back of your eye that enable you to see even the lights are low) that prevents or slows the development of age related macular degeneration, or progressive damage to the retina of the eye, which can cause the loss of central vision (the ability to see clearly enough to read or do fine work).
Finally, vitamin A promotes the growth of healthy bones and teeth keeps your reproductive system humming and encourages your immune system to churn out the cells you need to fight off infection.
Fat Soluble Vitamins