Vitamin A Recap

Thursday, 16 July 2015 by

journal-nutrition-imageA vitamin is a substance that makes you ill if you don’t eat it.” (Albert Szent-Gyorgyi, Nobel Prize in Physiology or Medicine, 1937).

Vitamins are natural components of foods and are organic compounds distinct from fat, carbohydrates and proteins. Vitamin A is the generic descriptor for compounds with the qualitative biological activity of retinol. Unlike beta-carotene, vitamin A is not an antioxidant and its benefit is related to its intimate relationship with immune reactions.

The effect of vitamin A on immune function is wide-reaching and its deficiency appears to affect immunity in several ways. Both the innate and adaptive immune responses are affected by lack of vitamin A.