A new study by researchers in the Linus Pauling Institute at Oregon State University found that ultramarathon runners who used supplements of vitamins C and E for six weeks prior to their races totally prevented the increase in lipid oxidation that is otherwise associated with extreme exercise. The type of metabolic damage observed in these runners is also often found after heart attacks, strokes, surgery and other traumas, the report noted, and the researchers say this study provides more evidence for the value of vitamin E supplementation as an antioxidant that, at the least, can help prevent damaging lipid oxidation and some of the health concerns associated with it.The study was just published in a professional journal, Free Radical Biology and Medicine.