Carotene

Carotene is a substance found in some food, which is converted to vitamin A in the body.  There are three types: alpha, beta and gamma carotene. Beta carotene has the greatest level of vitamin A activity. The richest food sources of beta carotene include orange and yellow fruit and vegetables, such as carrots, pumpkin, mangoes, oranges, mandarins, pawpaw, rockmelons, apricots and yellow peaches.