Glutathione System from Cyanobacteria to Higher Eukaryotes Encyclopedia MDPI Glutathione: Role in Oxidative Nitrosative Stress, Antioxidant Defense, and Treatments Raj Rai 2021 ChemistrySelect Wiley Online Library Glutathione is nicknamed the master antioxidant because it is the most abundant, body produced (endogenous) antioxidant found in every cell, essential for neutralizing free radicals, recycling other antioxidants (like Vitamin C and E), Glutathione is often called the body's master antioxidantand for good reason. It works at a cellular level to help protect against oxidative stress, support detoxification, and keep your system functioning efficiently. But What To Avoid When Taking Glutathione In 2026