Vitamins are not pep pills and have no caloric or energy value of their own. Vitamins are not substitutes for protein or for any other nutrients, such as minerals, fats, carbohydrates, and water. Vitamins themselves are not the components of our body structures. You cannot take vitamins, stop eating , and expect to be healthy. Vitamins are essential to the normal functioning of our bodies and, save for few exceptions, cannot be manufactured or synthesized internally. Vitamins act like a spark plug to energize and regulate our metabolism to keep us tuned up, functioning at a high level of performance. Hence, vitamins should only be ingested with foods.