But the new research suggests that as well as causing damage, oxygen free radicals also spur the body into becoming more sensitive to insulin. By mopping up the molecules, antioxidant vitamins cancel out this beneficial effect.
Really? Everything I have read has said oxidative stress is a major contributor to insulin resistance. And that taking anti-oxidant sups increases glucose disposal; this is especially the case when oxidative stress is higher such as obesity, diabetes, and yes, exercise.
This is new to me...need more convincing.