Catabolism of extracellular glutathione supplies cysteine to support tumours Nature 9 Health Benefits of Glutathione Glutathione is such a critical soldier in our line of defense that our bodies make it themselves. We even have mechanisms that recycle and reuse it. But what happens when our toxic Supplementation with uric and ascorbic acid protects stored red blood cells through enhancement of non enzymatic antioxidant activity and metabolic rewiring ScienceDirect Uric acid shown to contribute to increased oxidative stress level independent of xanthine oxidoreductase activity in MedCity21 health examination registry Scientific Reports