Vitamin A plays a significant role on the human body. It can help us maintain healthy skin, reduce acne and wrinkles. Furthermore, it is very beneficial to our eyes. The deficiency of vitamin A may cause some problems to our health. Thankfully, we can easily supplement it by consuming foods like liver oil, fruits, vegetables and dairy products. However, the abuse of vitamin A is harmful to our body, especially for infants and some certain diseases. This article introduces vitamin A in some respects for your reference. Hoping it would be helpful for you.