“Vitamin C” — important as an antioxidant but also in its ability to regenerate the antioxidant form of Vitamin E. With acute viral infections (flus, colds), vitamin C can reduce symptom severity and shorten illness time at high levels. Important in the maintenance of bones, teeth, blood vessels and connective tissue as well as enhancing the immune system, and in decreasing the risk of death from heart attacks, strokes, and cancer.