Multivitamin refers to the prepared form of the vitamins and minerals collectively so that people can have it in case of deficiency of any vitamins and minerals. There are some specific forms of the multivitamin such as tablets, liquids and injections. People can use any one of them in order to have the vitamin in their body. However, it is highly recommended to consult with the experts and doctors before having the supplements. There are several veterans available who will advise you after diagnose you that how much and in which form you need to have the multivitamins which will be safe for your body.