What is glutathione and why must we protect patient access to it? Glutathione, often dubbed the master antioxidant plays a crucial role in detoxification, immune function, and protecting our cells from oxidative stress. Here are some signs that your levels might be low: Persistent Glutathione is often called the body's master antioxidant, but most people don't really understand what it does. It plays a central role in protecting your cells from damage, supporting detox pathways, and 8.7 Selenium LibreTexts Nutrition Role of oxidative stress in neurodegeneration (GSH = glutathione; GSSG Download Scientific Diagram