Vitamin A

Alternative names:

deficiency - vitamin A; vitamin A deficiency

Definition:

Vitamin A is a fat-soluble vitamin.

Functions:

Vitamin A helps in the formation and maintenance of healthy teeth, skeletal and soft tissue, mucous membranes, and skin. It is also known as retinol, as it generates the pigments that are necessary for the working of the retina. It promotes good vision, especially in dim light. It may also be required for reproduction and lactation. Beta carotene, which has antioxidant properties, is a precursor to vitamin A.