<<

A is a soluble vitamin. It is stored in the and can be stored in body fat tissues when consumed in excess. There are two main forms of vitamin A: A & Preformed vitamin A. Inactive form: Vitamin A is Good for: Vision (especially in low lighting) Provitamin A Cell growth/reproduction (): Immune function (growth of white blood cells) Mainly found in -based such as fruits Fetal development & (beta-carotene) Surface tissues such as , intestines, lungs, provitamin A carotenoids from plant sources are bladder, inner ear less well absorbed and need to be converted to vitamin A in human intestinal cells FUN FACTS Comes in the form of carotenoids (mainly beta Eating too much provitamin A (beta carotene ) can give your skin an carotene) hue occurs when abnormal cells grow/divide uncontrollably...so vitamin Active form: A may reduce risk of some because vitamin A plays an important Preformed role in growth/development of cells HOWEVER!! only inactive form provitamin A has been linked to decreased risk of certain cancers, active vitamin A preformed vitamin A has not been linked similarly (Retinoids): Eating high amounts of the active form of vitamin A from animal foods, or supplements can be toxic (). Mainly found in animal based : dairy, & fish High intake of provitamin carotenoids (such as beta-carotene) from & liver (higher quantities found in liver because vegetables and fruits does not cause , as conversion vitamin A is mainly stored there) from carotenoids to the active form of vitamin A is regulated by the body to preformed dietary vitamin A is well absorbed by maintain an optimum level of the vitamin. humans, Carotenoids themselves cannot produce toxicity. Comes in the form of Because vitamin A supports healthy vision, deficiency can cause blindness, having trouble seeing in the dark could be a sign of Small amounts of , such as a drizzle of oil, helps vitamin A Foods that contain Vitamin A: absorption , , , , , With Warm Regards, , liver, , Black-eyed Kristia Bondoc , , Eggs,, , Email: [email protected]