Vitamin A is also known as the anti-infective vitamin hence it protects the epithelial tissues of the respiratory, alimentary and urogenital tracts.
Other important functions of vitamin A include the maintenance of visual sense organs,health and fertility, increasing the production of immunoglobulins, growth of body and skeleton.
Vitamin D3 regulates the calcium and phosphorus metabolism, it promotes their absorption from the intestine.
Vitamin E regulates the oxidation process of the body. It is necessary for growth and proper hormone function of muscles and nervous system.