Glutathione: The Bodys Master Antioxidant, ., ., Glutathione (GSH) is often referred to by scientists and nutritionists as the "Master Antioxidant." Unlike other antioxidants like Vitamin C or E, Glutathione Deficiency Symptoms: Is Poor Sleep Just the Beginning? Cardiology & Neurology Specialists located in Queens, Forest Hills and Brighton Beach, Brooklyn, NY Advanced Medical Care Glutathione is the most critical antioxidant and detoxifier made by the body and one that is easily depleted in the face of chronic exposure to toxins. If you don't eat enough protein you What is glutathione and why must we protect patient access to it?