All About Vitamin A
Because vitamin A was the first vitamin to be discovered, it was given the first letter of the alphabet as its name. It was discovered that vitamin A serves a variety of functions in the body, including maintaining good eye health, promoting cell growth, and enhancing the immune system. But in addition to being absorbed directly, vitamin A is also produced by the body when beta carotene is changed into vitamin A.
Eggs, milk, liver, and meat are just a few foods that contain vitamin A. Many fruits and vegetables, especially those that are red, orange, or green, contain beta carotene, which the body can convert into vitamin A. The most crucial thing to keep in mind is that consuming excessive amounts of pure vitamin A can be toxic. The recommended daily allowance for vitamin A must be adhered to. Depending on a person’s age, sex, and other factors, different amounts of vitamin A are actually advised. While exceeding the recommended daily allowance of vitamin A may make the actual amount consumed toxic, there is a much higher upper limit on the amount of beta carotene that can be consumed. Therefore, rather than consuming large amounts of pure vitamin A-rich foods, it is advised to focus on obtaining the most beta carotene, which the body can then convert to vitamin A.
Many people will recall hearing that eating lots of carrots improves your night vision because they contain high levels of beta carotene, which is converted into vitamin A, which improves your ability to see in the dark. Tomatoes and dark-green leafy vegetables like spinach have high levels of beta carotene, which can be converted to vitamin A. In addition to being a potent antioxidant in and of itself, beta carotene is also a component of vitamin A. No beta carotene that is absorbed is lost because any extra is used to fight the body’s dangerous free radicals once it has been converted to vitamin A. Additionally, vitamin A aids in the prevention of infections by promoting the growth of tissues that line the eyes, mouth, nose, throat, and lungs, as well as their repair after damage to avoid infection. Children also require a lot of vitamin A for healthy bone and tooth development.