Vitamins are essential to life.
They contribute to good health by regulating the metabolism and assisting the biochemical processes that release energy from digested food. Unfortunately, the amounts they came up with give us only the bare minimum required to ward off deficiency diseases such as beriberi, rickets, scurvy, and night blindness. They do not account for are the amounts needed to maintain maximum health, rather than borderline health. The proper balance of vitamins and minerals is also important to the proper functioning of all vitamins. Scientific research has proved that an excess of an isolated vitamin or mineral can produce the same symptoms as a deficiency.