BBC NEWS | Health | Vitamins 'undo exercise efforts'

BBC NEWS | Health | Vitamins 'undo exercise efforts': "Taking vitamins after exercise may undo some of the beneficial effects of the workout, research suggests.

Some advocate taking antioxidants like vitamin C and E to help protect the body from harmful chemical by-products it creates in breaking into a sweat.

But German scientists now believe these 'free radicals' may actually be good for us and even buffer against diabetes, PNAS reports.

And mopping them up with antioxidants may do more harm than good."