"…What these findings mean for those of us who work out regularly is still being determined by scientists. But one message is clear.'The evidence suggests that antioxidants are not needed' by most athletes, even those training strenuously, said Li Li Ji, a professor of exercise physiology and nutritional science at the University of Wisconsin and one of the authors of the rat study. 'The body adapts,' he said, a process that can, it seems, be altered by antioxidant supplements.
Another lesson: 'Eat well,' he said. Although this is not yet proved, it seems likely, he continued, that antioxidants from foods, like blueberries, green tea and carrots, may work in tandem with the body’s natural antioxidant defenses better than those from supplements.
But the overriding lesson of the newest science about exercise and antioxidants may be as simple as: let the body be. 'It is quite a smart machine,' Dr. Ji said. 'It knows how to respond' to stresses like a hard run, without the need for antioxidant pills."
I love the New York Times' website these days.