Regeneration of the skin, slowing aging, the formation of bones and teeth, strengthening immunity, resistance to infections and colds, healthy eyes, lungs, urinary tract and digestive system - is that vitamin A does best. A serious list of features is complemented by an extensive list of what vitamin A is necessary.
This vitamin was discovered not the first, but the letter A, which sets this vitamin in the top of the list, it is absolutely deserved. Effect of vitamin is so pervasive that it is rightly called an essential element in our body. Vitamin A is involved in the processes of oxidation and reduction, provides the normalization of metabolism and function of cell membranes, the formation of bones and teeth. It is a necessary element in the growth of new cells, ensuring the operation of the visual analyzer and photoreception, and helps synthesize the visual pigment of the retina and is necessary for the correct perception of the light flux eye. Vitamin A is essential for the immune system, to improve the protective function of the mucous membranes. The presence of vitamin A allows the body to successfully resist the long list of illnesses, from colds and flu before the diseases of the digestive tract, respiratory tract and urogenital system. Vitamin A helps to quickly deal with the measles and smallpox, and even extends the life of AIDS patients.
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We can say that the presence of vitamin A - is the foundation of life and normal functioning of 
the human body. Of course, only in the complex of all vitamins can keep the body healthy, but it is the lack of vitamin A can be a critical factor. Vitamin A is needed not only for the internal organs and skin. Leveraging the regeneration of tissues, vitamin A helps keep our skin fresh and smooth. Active processes of recovery can help heal faster than skin diseases and sores are small, get rid of acne, and even to resist severe skin diseases. Vitamin A reduces the risk of skin infections due to the increased resistance of the tissues.
the human body. Of course, only in the complex of all vitamins can keep the body healthy, but it is the lack of vitamin A can be a critical factor. Vitamin A is needed not only for the internal organs and skin. Leveraging the regeneration of tissues, vitamin A helps keep our skin fresh and smooth. Active processes of recovery can help heal faster than skin diseases and sores are small, get rid of acne, and even to resist severe skin diseases. Vitamin A reduces the risk of skin infections due to the increased resistance of the tissues.
Vitamin A is essential for normal lung function, prevention and treatment of ulcers and colitis of the stomach and intestines, for full and proper nutrition and fetal development. In addition, it is necessary to reduce or eliminate the risk of complications during pregnancy, such as low weight of the future newborn. Vitamin A is involved in the formation of sperm and steroid hormones. Vitamin A as a powerful antioxidant used in cancer prevention, as well as relapse prevention, that is, the repeated appearances of tumors after surgery. Vitamin A, along with provitamins (eg, beta-carotene) protects brain cells from free radicals, and thus prolong youthfulness and maintain health. Beta-carotene, but "radical" opposition, also helps the heart and arteries, thereby angina patients 
feel much better. Beta-carotene found in carrots, but other pro-vitamins - with lutein zeaksentinom contained in tomatoes, protect the eyes, preventing cataracts develop, and in many cases help to prevent blindness.Well, lycopene, another element of pro-vitamin contained in tomatoes, perfectly protects blood vessels from the sediment, preventing atherosclerosis. He's irreplaceable prophylactic against breast cancer and prostate cancer.
feel much better. Beta-carotene found in carrots, but other pro-vitamins - with lutein zeaksentinom contained in tomatoes, protect the eyes, preventing cataracts develop, and in many cases help to prevent blindness.Well, lycopene, another element of pro-vitamin contained in tomatoes, perfectly protects blood vessels from the sediment, preventing atherosclerosis. He's irreplaceable prophylactic against breast cancer and prostate cancer.
Such an impressive list of action of vitamin A is simply obliged to draw the attention of anyone who wants to live a long life without disease. Do not forget that there are no unimportant vitamins, and only together they are the powerful front, keeping the body's defenses at the level where he copes well with most diseases, and even cured by a rather serious illness. That is, to maintain the health of people just want good nutrition with the inclusion of various vitamins. The more varied our diet, the more fresh fruits and vegetables, the stronger our health.
Vitamin A zhirorastvorim. This means that for the successful assimilation of essential fats. It can be vegetable oils, animal or fish oil. Sam vitamin is synthesized in the human body from the provitamins contained in plant and animal foods. First, vitamin A was obtained 
from carrots (English - carrot), and therefore a large group of substances is the name of the carotenoids. This provitamins, that is, the necessary material for the synthesis of vitamin A. Carotenoids are actually found in vegetables, algae, fungi and converted into vitamin A in human liver using specific oxidation processes. The best-known carotenoid include beta-carotene contained in carrots and other brightly colored vegetables. List of products containing the raw materials for the synthesis of vitamin A, is quite large, and there is no need to limit yourself to choosing products.
from carrots (English - carrot), and therefore a large group of substances is the name of the carotenoids. This provitamins, that is, the necessary material for the synthesis of vitamin A. Carotenoids are actually found in vegetables, algae, fungi and converted into vitamin A in human liver using specific oxidation processes. The best-known carotenoid include beta-carotene contained in carrots and other brightly colored vegetables. List of products containing the raw materials for the synthesis of vitamin A, is quite large, and there is no need to limit yourself to choosing products.
The best sources of vitamin A can be considered as fish oil (19 mg per 100 g), liver (15 mg), butter, egg yolks, cream and whole milk. In addition, the necessary elements for the synthesis of vitamin A (provitamins) are available in the cottage cheese, cheese, sour cream, red carrots (9 mg), pumpkin, red sweet pepper (10 mg), broccoli, spinach, parsley, soybeans, peas, green onions ( 6 mg), sorrel (8 mg). Slightly less than the required elements in peaches, apples, apricots, grapes, watermelon, melon, sea buckthorn, dog rose, sweet cherry, cayenne pepper, hops, fennel, oats, nettle, mint peppermint, sage and violet leaves.
Particular attention to the above products should be paid to those who are often suffering from colds or suffered infectious diseases (measles, dysentery, bronchitis, pneumonia), from whom there are inflammatory 
eye, such as conjunctivitis, rhinitis, pigment, people with chronic diseases, ulcers of the stomach and intestines, cores, and suffering from skin diseases.
eye, such as conjunctivitis, rhinitis, pigment, people with chronic diseases, ulcers of the stomach and intestines, cores, and suffering from skin diseases.
Vitamin A is resistant to heat treatment, which means that the usual methods of cooking significantly reduces the vitamin content. For the best dissolution of vitamins, especially from plant sources, are necessary fats. In other words, salads, fresh vegetables always refill the oil, for frying carrots and other vegetables, use just enough oil. Remember that vitamin A is well absorbed by the body only in the presence of vitamin E. Vitamin A is destroyed by the action of ultraviolet radiation and oxygen.This means that products can not be stored in a place where they are exposed to direct sunlight, and packaged products should be in sealed bags, plastic wrap or a special vacuum containers for vegetables. Try to buy fresh vegetables, remember that the path from the beds to shelves in the store takes 10 to 30 days.
Vitamin A is learned to synthesize and release tablets, but have not learned to protect themselves from drug overdoses artificial but to release vitamin A doctor's prescription. There are complexes of vitamins imported (mainly U.S.), each of which may contain pills daily allowance of vitamin A and many others. At the use of 3.2 tablets may be poisoning. In the case of natural sources of vitamin A overdose is impossible.
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