Retinol Vitamin A.

October 12, 2008

Vitamin A, opened in the early 20 century, is necessary to preserve the normal view, a healthy and beautiful skin and the immune system strong. Drugs with retinolom researched specialists for different areas of health. The results of the studies we summarized below.

Vitamin A and retinol
Vitamin A is a vitamin zhirorastvorimy, accumulates in the liver. In retinol enters the body along with animal fats. In addition, vitamin A can be synthesized in the body from carotene and carotinoids others contained in vegetables and fruit. Vitamin A in the body before it retinoidami. Retinol often included in the composition of cosmetics for skin care.

The recommendations about the application of retinal
According to the recommendations of the WHO (1996) Vitamin A food-processing as a major component in the fight against childhood diarrhea, respiratory infections, infections, measles complications, as well as factor in the reduction of infant mortality.

How much you want to vitamin A
The recommended dose of retinol is 2300 IU per day for women over 19 years and 3000 IU per day for men the same age. At Therapies vitamin dosage of vitamin A may not appear in international units (IU), while retinolovom equivalent (RE) 1 RE = 3.3 IU.

Who is not enough vitamin A
Respiratory tract infections, smoking, camping ecological ki c deprived areas and in major cities deplete stocks of vitamin A in the body.
The deficit retinal often noted in women with long or heavy monthly, so they need additional quantities of vitamin A deficiency.
Antibiotics, Purgative means drugs, delaying absorption of fats in the gastrointestinal tract (some means to reduce weight) and drugs that reduce cholesterol content in the blood, affecting the learning of vitamin A deficiency.
In recent years found a direct correlation deficit of retinal length of stay in the sun, especially for the people in the middle and northern latitudes traveling to rest in the southern countries.

Vitamin A and Sight
The deficit retinol can cause night (dusk), and in some cases complete blindness.
Vitamin A funktsionarovanie ensures normal eye mucous membranes of cells. The characteristic signs of deficiency for a retinal kseroftalmiya (dry eyes). When you add to the diet of patients with vitamin A during kseroftalmii improving.
It has been proved that vitamin E prevents the development of night blindness, preserves vision, particularly dusk and night. Retinol It helps the eyes to adjust in the transition from bright light in the darkness. With a shortage of vitamin A growing gemeralopiya-blindness "chicken" is the deterioration dusk and night view.

Vitamin A and immunity
When retinal deficiency reduced resistance to infection. This is because atroficheskih changes and impoverishing T-zon. Experiments have shown that vitamin A has had a catalytic effect on the various parties to the immune response.
Retinol provides formation immune cells (protective), vystilki respiratory tract and gastrointestinal tract, employees natural barrier to the penetration of the infection.
When beriberi vitamin A noted increased susceptibility to infection. By strengthening immunity, retinol greatly increases resistance to infectious diseases, including, for the common cold, flu, flu and bronchitis have. Vitamin A helps with herpes and depriving opoyasyvayuschem, borodavkah (viral infection of skin), and even with heavy allergic reactions.

Vitamin A and cancer
The deficit retinal Kemoklidze risk factor for cancer. Vitamin A helps the immune system to fight breast cancer and lung improves survival in patients leukemia. In experiments on animals retinol suppresses the development of melanoma, a deadly form of skin cancer. For cancer patients is important, and the fact that vitamin E improves the efficiency of chemotherapy.

Vitamin A and diabetes
In applying vitamin A drugs in patients with diabetes showed that 25000 IU per day retinal increase the body's sensitivity to insulin and improve the control of blood glucose level.

Vitamin A and gastrointestinal
When vitamin A deficiency reduced resistance to infection, including coliform.
Retinol plays an important role in maintaining and restoring Epithelial tissue mucous membranes. When there is a deficit of vitamin A decrease in the number of cells in the mucosal bokalovidnyh coat of the gastrointestinal tract.
Lack of vitamin A can lead to the development of atroficheskogo gastritis, colitis, holelitiaza (stones in the gall bladder).
Extra vitamin A in the diet of children reduces the number of acute ponosov.

Vitamin A hormones and reproductive health
Thyroid Hormones involved in the conversion of carotene into vitamin A. Therefore, the shortage of iodine in the diet or with hypothyroidism should avoid beta reception because the body will not be able to convert it into vitamin A. Lower When thyroid function should take vitamin A pure, rather than a carotinoids.
When retinal deficit changing structure mucous membranes of the reproductive organs, leading to impotency in men, weakened erection, premature ejaculation, and reduce the drive, and the women to leykoplakii, the emergence of erosion, endotsirvitsita, polypoids, adenomatoza and mastopathy.

Vitamin A and skeleton
Retinol involved in the formation of skeletal together with vitamin D, calcium and, indirectly, through the thyroid hormones.

Vitamin A and leather
Vitamin A normal existence provides skin epithelium cells. If there is shortage of retinal giperkeratinizatsiya skin (skin), it becomes kind of "vacuum" or "fish scale". This is because of violations of making different types of multilayered epithelium in the flat epithelium.
Because vitamin A deficiency may develop dermatitis seboreynogo often appear hair change: loss of gloss, and the fallout.

Where to Get Vitamin A
To obtain the recommended daily dose of vitamin A, you need to eat more than 10 large eggs.
Nutritional studies have shown that none of the plant or animal food can not make up for deficits of vitamin A, so it should be taken further in a multi drugs or in functional food products

Assistant vitamin A
Take supplements of vitamin A needed during the meal. Since small amounts of fat retinol plays better. Vitamin E and zinc help the body better use of vitamin A, which in turn stimulates the digestion of iron from food.

Natalia Rosina

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