Frontiers Glutathione: Pharmacological aspects and implications for clinical use in non alcoholic fatty liver disease C peptide is a biomarker for beta cell function. In other words, it's a measure of beta cell health and insulin production, and is critical to developing new disease modifying therapies for type 1 What Is Glutathione? Health Benefits, Risks, and More GlyNAC Supplementation Improves Glutathione Deficiency, Oxidative Stress, Mitochondrial Dysfunction, Inflammation, Aging Hallmarks, Metabolic Defects, Muscle Strength, Cognitive Decline, and Body Composition: Implications for Healthy Aging The What is Glutathione? What are the Benefits of Glutathione?