Vitamins are obtained from whole foods. Many people have likes and dislikes that keep them from eating green leafy vegetables such as kale, broccoli, brussels sprouts and other foods necessary for good health. As a result, vitamin supplements are a must.
Vitamins are essential for human life. Needed only small amounts in the diet, they regulate all metabolic processes, including growth, maintenance, energy production, reproduction and health. They also protect tissues against damage. Each vitamin has its own special function in the body and cannot be replaced by anything else.
(quoted from "Going Back to the Basics of Human Health," p. 45, 49)
Try a whole food vitamin like Standard Process you will be happy you did.
Eat to Live Not Live Not to Eat