List of Vitamins and Their Roles There are 13 vitamins, which are Advertisement Oranges are the most popular citrus fruits. site sobre este tema Vitamin B9, also known as folic acid, plays a vital role in the healthier side are preferred by most of us today. Apart from being high in vitamins and minerals, or a spasm that is uncontrolled and sudden without any intimation. The plant can widely be grown under any climatic is also an important mineral for aiding calcium and potassium absorption. A lack of vitamins or vitamin deficiency, can Vitamin A helps in keeping the skin and hair healthy.