Vitamin A is a fat-soluble vitamin found in a myriad of delicious foods, as such vitamin A deficiency is usually rare, as there are many meats and vegetables that contain a decent amount of this organic compound. Most people know that carrots are high in vitamin A, but butter and sweet potatoes are also excellent sources.
The most common functions of vitamin A are maintenance of vision, skin health and immune system strength. Retinol is an alternative form of vitamin A found only in meat, whereas plants contain only vitamin A. Both retinol and vitamin A have the same exact function. Meat can contain over three times as much retinol, so vegetarians should make sure their vitamin intake is adequate. It is important to remember that since it is a fat-soluble vitamin, you can take in too much vitamin A. The recommended dosage of vitamin A is about 1,000 micrograms for a young person, though age group dictates the amount you should ingest so always double check with your primary care physician.