You probably heard about resveratrol, the antioxidant found in red wine and used as major argument for red wine consumption. Now it looks like it actually blocks many benefits of exercise.
Resveratrol, From My Tongue You RollAh, resveratrol, the anti-aging, good-for-your-heart and blood pressure lowering wonder found in red wine and in the last years also sold as supplement. Together with a bit of cardiovascular fitness, people were told, it gets you the heart and health of a bull.I already raised an eyebrow about the health claims here and here, and now researchers at the University of Copenhagen zeroed in on resveratrol when combined with exercise.
It Limits The Effect Of ExerciseThey took 27 healthy but physically inactive men in the mid-60s age group and for eight weeks had them do high-intensity exercise. Half of them got a daily 250 mg of resveratrol and the other group a placebo.What happened is best explained by one of the people behind the study:
We found that exercise training was highly effective in improving cardiovascular health parameters, but resveratrol supplementation attenuated the positive effects of training on several parameters including blood pressure, plasma lipid concentrations and maximal oxygen uptake.Translation: those who received resveratrol got less out of all that fitness, because the supplement limited the postive effects of exercise. It is pretty much similar to what was seen in athletes who use multivitamins.