Vitamin A: Functions, Sources, deficiency, dosage, and side effects

Contrary to popular belief, Vitamin A is a class of fat-soluble chemicals that includes retinol, retinal, and retinyl esters. As a result, vitamin A is commonly regarded as a specific nutrient. This vitamin comes in two forms: provitamin carotenoid found in plants and preformed vitamin found in animals. It is inactive and must be converted […]