Anti infective vitamin is –

Functions of Vit A Vitamin A is essential for - I.Normal vision Retinol is necessory for functioning of retina. Regeneration of rhodopsin during dark light is vit A dependent --> vit A deficiency causes defective dark adaptation. 2. Anti-infective Vitamin A is necessary for integrity of epithelial tissues that resist invasion by pathogens. Vitamin A has some role in immune response. 3. Anticancer effect Beta-carotene has antioxidant property —> by virtue of this action it reduces the incidence of lung, breast, oral, esophageal and bladder cancers. 4. Skeletal - growth Vitamin A supports skeletal growth.