VITAMIN A

Vitamin A occurs in two forms: preformed vitamin A, known as retinol, and provitamin A, also known as beta carotene. Vitamin A is also known as “the vision vitamin” for its role in aiding eyesight. Because it is fat-soluble and stored in the liver, it need not be replenished every day.

Vitamin A helps maintain healthy skin, teeth and bones, as well as mucous membranes, such as those in the nose, throat and lungs. It is necessary in the formation of an eye pigment involved in night vision, and is therefore essential for vision in dim light. Vitamin A is needed for proper development of the fetus in the womb.