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Antioxidants May Block The Benefits Of Good Bodily Stress, Like Exercise

July 22, 2013: 12:00 AM EST
The natural antioxidant resveratrol, found in red grapes and other plants and available as a dietary supplement, has been touted as an anti-aging compound. But new research finds that, in older men especially, eating a diet rich in antioxidants may actually counteract many of the health benefits derived from exercise, including lower blood pressure and cholesterol. The researchers suggest that antioxidants are not a panacea: some oxidative stress is necessary for the body to function effectively. Too many antioxidants may block healthy adaptations to stress, including beneficial exercise stress.
Lasse Gliemann et al., "Resveratrol Blunts the Positive Effects of Exercise Training on Cardiovascular Health in Aged Men", The Journal of Physiology, July 22, 2013, © The Physiological Society
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