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Vitamin is an important topic on health and (1) . Vitamins are natural (2) substances that we need in order to stay healthy. To get enough vitamins, we must vary our (3) with many types of meat, (4) , fruits and such the like. (5) of vitamins is not a great problem, except for Vitamin B and C. Vitamin A is important for (6) and eyes, and people lacking this vitamin may suffer from (7) problems. Vitamin B is actually a group of many vitamins called the Vitamin B (8) . It is necessary for regulating the (9) system of the body and without it you may encounter (10) and confusion. Vitamin C helps maintain a (11) within the body that assists in the formation of teeth and (12) . It is also good for boosting the (13) system and is needed to absorb (14) into the blood. The body can produce Vitamin D, when it is exposed to (15) . Vitamin E is known to be an essential (16) in over 20 vertebrate species. It also helps to carry (17) in the blood. We need vitamins to maintain a healthy (18) , but there is still controversy over the real effect of multivitamins or vitamin (19) , and (20) of vitamins can be potentially harmful to human health.