Figure 1 from Glutathione redox cycle protects cultured endothelial cells against lysis by extracellularly generated hydrogen peroxide. Semantic Scholar Paraxanthine, a compound the body naturally produces when it breaks down caffeine, is starting to appear in energy drinks and even some coffee products as a potential caffeine alternative." Read our latest 93% of Americans use caffeine daily, but nearly 50% are slow caffeine metabolizers?! That means millions of people experience more crashes, anxiety, and sleep issues from their morning coffee than the clean Concerted action of antioxidant enzymes superoxide dismutase, catalase, Download Scientific Diagram