Vitamin A and carotenoids - Why do we need vitamin A in the diet - Vitamin A is a fat soluble vitamin that is essential for the healthy development of bones, teeth, healthy skin and also helps to maintain clear vision.
Working together with vitamin A, carotenes, which are forms of vitamin A of plant origin, perform many important functions.
Although there have been nearly 600 types of carotenoids that have been identified, research has found that at least 30-50 of them were found to involve vitamin A activity and therefore share a positive relationship with Vitamin TO.
Carotenoids are naturally occurring plant pigments in bright colors that are essential for the photosynthesis process. They are also those that help protect plants as well as the body against the potentially damaging effects of free radicals.
The ability of free radicals to oxidize cells is eliminated by the antioxidants found mainly in milk, fruits and vegetables. Once the cells in the body is oxidized may cause fatal health
complications, including heart disease, Alzheimer's disease, cataracts,
arthritis and others.
Consuming adequate levels of vitamin A can help delay the signs of aging. It has the ability to ward off wrinkles and it has rightly been labeled "anti-aging" vitamin.
also helps to improve the immune system of the body which in turn keeps
the mucous membranes of the throat, lungs, eyes, mouth,
gastrointestinal tract, kidneys, bladder and reproductive system
healthy. Vitamin A is also known that cholesterol levels and contributes to the production of hormones.
Vitamin A also contributes to the production of ribonucleic acid (RNA). When
RNA is reproduced in large quantities, which helps create new cells for
old and worn out cells, they can be replaced effectively.
liver oil is one of the most commonly found natural sources of vitamin
A. cod and halibut have the highest concentration of this vitamin. Other sources include eggs, milk and fruits like nectarines, melons, apricots, plums, watermelons mandarins and mangoes.
the sources of bright colors excellent dark green vegetables are like
kale, collard greens, escarole, chicory, endive, romaine lettuce,
broccoli, peas, carrots, red pepper, pumpkin, squash, turnips, potatoes and tomatoes are sweet vitamin A.
The ideals of the people amounts vitamin A must be between 500-800 micrograms per day. The recommended amounts are 600 micrograms for men, 500 micrograms for women. However during pregnancy women need to consume about 800 micrograms per day and 850 micrograms around during lactation.
Vitamin A deficiency:
Vitamin A deficiency affects vision, particularly the ability to see clearly at night or in dim light. Night blindness and dry eyes are typical symptoms of this deficiency. In addition to vision problems can also lead to skin problems such as acne and psoriasis.
A poor diet is usually the cause of vitamin A deficiency are particularly vulnerable elderly people and those living in areas of the world where poor diets prevail.
By: Mike Singh