Critical Roles of the CysteineGlutathione Axis in the Production of Glutamyl Peptides in the Nervous System Frontiers Redox metabolic circuits as a central regulator of T cell based immunotherapy Glutathione: The Master Antioxidant Core Med Science protein synthesis protein intake. you can eat a pound of steak and only ~32% of those amino acids actually become new protein in your body. the rest gets converted to glucose