All About Vitamin A

Vitamin A is given the first alphabet letter for the name because it is the first vitamin found. It was found that vitamin A has many uses in the body including maintaining eye health, helping cell growth and also helping to boost the immune system. However, vitamin A is not only absorbed directly but also made by the body by converting beta carotene to vitamin A.
All About Vitamin A
All About Vitamin A

Vitamin A itself is found in a number of foods such as eggs, milk, liver and meat. Beta carotene that can be converted by the body into vitamin A is found in many fruits and vegetables, especially those in red, orange and green. The most important point to remember is that consuming too much pure vitamin A can be toxic. It's important not to exceed the recommended daily allowance for vitamin A. The actual recommended vitamin A benefits vary depending on a person's age, gender and other factors. While the actual amount of vitamin A consumed may be toxic if the recommended daily allowance is exceeded, there is a much higher limit for how much beta carotene can be consumed. Therefore, it is recommended to concentrate on getting the largest amount of beta carotene which can then be converted by the body into vitamin A, rather than consuming large amounts of pure vitamin A-rich foods.

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Many people will remember being told that eating lots of carrots helps you see in the dark and that depends on vitamin A resulting from high levels of beta carotene found in vegetables. Other foods that have high levels of beta carotene that can be converted to vitamin A include tomatoes and dark green leafy vegetables, such as spinach. Beta carotene is not only used to form vitamin A, but also a powerful antioxidant. None of the beta carotene absorbed is wasted because the excess after conversion to vitamin A has been used against harmful free radicals in the body. Vitamin A also helps fight infections and diseases by helping tissues lining various parts of the body, including the eyes, mouth, nose, throat, and lungs, to grow and also to repair them if they are damaged to prevent infection. Children also need lots of vitamin A to help their bones and teeth develop well.

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