Study suggests antioxidant blocks exercise gains

... exercise alone. Similarly, a German study in 2009 found that a combination of 1,000 mg of vitamin C and 400 IU of vitamin E blocked the improvements in insulin sensitivity you'd normally get from exercise. As any scurvy-ridden sailor of yore could ...

http://www.theglobeandmail.com/life/health-and-fitness/fitness/study-suggests-antioxidant-blocks-exercise-gains/article15443411/?cmpid=rss1