Figure 2From: Red wine consumption increases antioxidant status and decreases oxidative stress in the circulation of both young and old humans Blood glutathione. Effect of red wine consumption on blood GSH concentrations from young (18–30 yrs) and older (≥ 50 yrs) volunteers. Bars represent mean ± SEM of blood GSH values pre and post two weeks of red wine consumption or abstinence. YA, young abstinence; YW, young wine; OA, older abstinence; OW older wine. a indicates a significant change with wine P < 0.05. b indicates a significant difference between young and old, P < 0.05.Back to article page