L Glutamine Administration Reduces Oxidized Glutathione and MAP Kinase Signaling in Dystrophic Muscle of mdx Mice Pediatric Research L Glutamine vs L Glutathione: What's the Difference? H PROOF Glutamine Metabolism Springer Nature Link Glutathione is an antioxidant that's made up of the three amino acids glutamine, glycine, and cysteineall of which are rich in the mineral sulfur. The main functions of glutathione are to fend off Regulative potential of glutaminerelation to glutathione metabolism ScienceDirect