Frontiers Glutathione: Pharmacological aspects and implications for clinical use in non alcoholic fatty liver disease Glutathione is nicknamed the master antioxidant because it is the most abundant, body produced (endogenous) antioxidant found in every cell, essential for neutralizing free radicals, recycling other antioxidants (like Vitamin C and E), 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 Glutathione: Master Antioxidant, Reducing Oxidative Stress, and Detoxification