Vitamin A is a fat-soluble antioxidant found in many healthy foods. There are two types of vitamin A: Preformed vitamin A, which is found in meats, fish, and dairy foods, and pro-vitamin A which comes from fruits and vegetables. Beta-carotene is the most common type of pro-vitamin A, which is plentiful in carrots. The best way to ensure obtaining vitamin A is by eating a wide variety of healthy foods. Vitamin A is helpful toward many body systems including skeletal, muscular, and promotes healthy skin, teeth and eyes.
As an antioxidant, Vitamin A helps to protect the cells against damage caused by free radicals. In addition, vitamin A is especially helpful for healthy eyes. It helps protect against age induced macular generation, glaucoma and fact, vitamin A is also called Retinol because it forms the pigment in the retina in the eyes. For this reason vitamin A helps eyesight, particularly in low lighting. Vitamin A is also used as a treatment for skin conditions such as acne, eczema, psoriasis and wrinkles. People take oral vitamin A to treat measles and dry eye. Vitamin A is also helpful against the side effects of HIV and malaria. Women use vitamin A to help with PMS and treat yeast infections; men use it to raise sperm count. Vitamin A can also boost the immune system.
Carotenoids are dark pigments in plant foods that are converted into Vitamin A by the body. Studies show that food sources that contain these carotenoids may help to prevent cancer.
While side effects from taking vitamin as are rare, if large doses are taken people could experience tiredness, nausea and vomiting, liver damage, headaches, head pressure, altered mental state, coma, and enlarged forehead in babies.
Research done by Ms. Emily Demino
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