Glutathione Benefits & Side Effects When Should You Take 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 A study shows that the antioxidant glutathione feeds cancer cells Tumor targeted glutathione oxidation catalysis with ruthenium nanoreactors against hypoxic osteosarcoma Nature Communications