Vitamin A is a naturally occurring fat-soluble vitamin in the form of retinol, which can be of both animal and vegetable origin, in the second case it is called carotenoids. Carotenoids cannot be synthesized by humans but must necessarily be taken with food.
NATURAL SOURCES OF RETINOL ARE:
- Cereals: corn and millet.
- Vegetables: asparagus, carrots, cabbage, savoy cabbage, tomatoes, sweet potatoes, squash, broccoli, endive and spinach.
- Fruits: apricot, yellow peach, watermelon, melon.
- Animal products: egg yolk, tuna, cod liver oil.
- Animal derivatives: milk, butter, cheese.
WHAT IS VITAMIN A USED FOR?
Its main action is that of support visual functions , as it is a fundamental constituent of the cells that form the retina; it can be said that, through a series of chemical processes, the presence of Vitamin A allows the eye to distinguish colors and see even in the presence of low or suffused light.
For these functions of sight to be possible, the supply of Vitamin A must be constant. It also protects cells from oxidative damage caused by free radicals.
Vitamin A is present in ours Vitaes Complex .
Bibliography: R. De Magistris - B. Ciaramella - R. Vitiello, "From function to injury".