Various functions of vitamin A
Nutrition Vitamin A plays a key role in vision, bone growth, reproduction, cell division and cell differentiation. In addition, vitamin A increases the strength of the immune system by helping to produce white blood cells that can attack bacteria and viruses.Vitamin A and control acne
According to the investigation, the Vitamin A can control or modify the steps necessary to create acne lesions. One step involves the shedding of skin cells that are not appropriate. Vitamin A can help improve how the pores remove dead skin cells, reduce the chances of developing clogged pores, which encourages the overgrowth Propionibactium active acne.
In addition, reports in the Proceedings of the Nutrition Society has found that vitamin A deficiency can cause inflammation and aggravate existing inflammatory conditions.
Medical studies have verified these conclusions. For example, a report in Clinical & Experimental Dermatology detected a direct relationship between levels of vitamin A and acne. In this study, researchers compared levels of vitamin A in 100 acne patients with newly diagnosed but not treated with 100 healthy volunteers without acne. Overall, the group of healthy and free of acne has a number of vitamin A are higher in their circulatory system than those who suffer from acne.
Based on these findings, the researchers concluded that vitamin A in low blood levels may cause or aggravate acne outbreak. The previous year, a survey in the British Journal of Dermatology found that blood levels of vitamin A on the low associated with high levels of severe cystic acne reaction among male volunteers.
How many doses of vitamin A
Daily Value of vitamin A for adults is 5,000 IU (international units). The recommended dietary allowance for vitamin A is 900 milligrams per day or 3000 IU per day. Tolerable level of vitamin A for adults is 10,000 IU per day. Excess doses of vitamin A can cause liver toxicity, birth defects and / or nausea.Where to get vitamin A
Vitamin A is found in animal foods is called "preformed" vitamin A. Animal-based vitamin A is absorbed in the form of retinol. then the body can convert retinol was active in other forms of vitamin A as retinal and retinoic acid.Food sources of vitamin A include beef liver, chicken liver, fortified milk, cheese, eggs, green leafy vegetables such as spinach and kale, carrots, and fruits are usually in groups of yellow and orange color family such as peach, mango, and apricots. According to the dermatology experts, the best source is to do a balanced nutritional diet. However, for those with unfavorable health conditions or lack of their body's ability to accept or absorb vitamin A in the right amount of food, supplement is the solution.
In short, as in clinical studies that vitamin A has been clearly recognized for the prevention of acne. Thus, intake of vitamin A should be considered as an important part of the treatment of acne.