Foods rich in vitamin A are mainly liver, egg yolk and fish oils; Vegetables such as carrots, spinach, mango and papaya are also good sources of this vitamin because they contain carotenoids, a substance that in the body will be transformed into vitamin A.
Vitamin A has functions such as maintaining vision, skin and hair health, strengthening the immune system and the proper functioning of reproductive organs.As an antioxidant, it is also important to prevent premature aging, cardiovascular disease and cancer.
The following table shows the amount of vitamin A present in 100 g of food:
Vitamin A can also be found in supplements such as fish liver oil, which can be used in case of vitamin A deficiency, following the advice of a doctor or nutritionist.Symptoms of vitamin A deficiency may include skin lesions, common infections, and night blindness.which is the difficulty of adapting vision in poorly lit areas.Damage caused by a lack of vitamin A is usually reversible, so vitamin supplements should be taken to supplement the deficiency, as medical opinion.
Vitamin A requirements vary by stage of life
These values represent the minimum amount of vitamin A that must be taken daily for the body to function properly.
A diversified diet is enough to reach the recommended daily dose of vitamin A, so be careful when using vitamin supplements without medical or nutritional advice, as excess vitamin A also causes health damage.Symptoms associated with excess vitamins include headache, fatigue, blurred vision, drowsiness, nausea, loss of appetite, itching and peeling of the skin and hair loss.