Everything about vitamin a

Vitamin a is the first letter of the alphabet for a name, because it was the first to discover vitamin. It has proved that vitamin a has a large number of applications in the body, including the healthy eyes, helping the cell growth and also help to stimulate the immune system. Vitamin a is absorbed not only directly, but it is also made by the body by converting beta-carotene into vitamin a.

Vitamin a itself is found in certain foods such as meat, milk, liver, and the eggs. Beta-carotene, found in many fruits and vegetables, particularly in the red, orange and green body vitamin converted colored ones. Point the most important to remember that consume too pure vitamin a can be toxic. It is essential not to exceed the daily allowance of vitamin a. real recommended allowance of vitamin a depends on the age of the person, gender and other factors. While the actual consumed quantity of vitamin a can be toxic if the recommended daily amount is exceeded, there is a limit much more high beta-carotene how can be consumed. Should therefore focus on obtaining the greatest amount of beta carotene, the body then convert to vitamin a can, instead of a huge quantity of pure of foods rich in vitamin a to consume.

Many people will remember said that eating lots of carrots help allows you to see in the dark and to vitamin a that is produced by high levels of beta carotene, found in vegetables. Other than high levels of beta carotene, which can be converted into vitamin a include tomatoes and dark green vegetables such as spinach food. Beta carotene is used not only for the forms of vitamin A, but it is also a powerful antioxidant in itself. None of the absorbed beta-carotene is wasted in excess after conversion into vitamin a has been used to combat the harmful free radicals in the body. Vitamin a also contributes to the fight against infections and diseases by helping tissue growing line of different parts of the body including the eyes, mouth, nose, throat and lungs, and also to repair if they are damaged to prevent infection. Children need many vitamin to help their bones and teeth to develop properly.