Glutathione for Food and Health Applications with Emphasis on Extraction, Identification, and Quantification Methods: A Review 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 Hepatic FXR FGF4 is required for bile acid homeostasis via an FGFR4 LRH 1 signal node under cholestatic stress: Cell Metabolism Glutathione: The Master Antioxidant Core Med Science