BIOMOLECULES AND ENZYMES

Detailed explanation-1: -Provitamin A carotenoids are plant pigments that the body converts into vitamin A in the intestine [1, 3]. The main provitamin A carotenoids in the human diet are beta-carotene, alpha-carotene, and beta-cryptoxanthin [1].

Detailed explanation-2: -The two main forms of vitamin A in the human diet are preformed vitamin A (retinol, retinyl esters), and provitamin A carotenoids such as beta-carotene that are converted to retinol. Preformed vitamin A comes from animal products, fortified foods, and vitamin supplements. Carotenoids are found naturally in plant foods.

Detailed explanation-3: -In the body, beta-carotene converts into vitamin A (retinol). We need vitamin A for good vision and eye health, for a strong immune system, and for healthy skin and mucous membranes. Taking big doses of vitamin A can be toxic, but your body only converts as much vitamin A from beta-carotene as it needs.

Detailed explanation-4: -Beta carotene is a plant pigment that gives red, orange, and yellow vegetables their vibrant color. Beta carotene is considered a provitamin A carotenoid, meaning that the body can convert it into vitamin A (retinol). Additionally, beta carotene has powerful antioxidant properties.