Fabio Hecht: Uncovering that glutathione boosts tumor growth OncoDaily Three amino acids walk into a bar.the adventures of supporting glutathione synthesis in fatty liver disease using serine & nicotinamide riboside Dr. Kara Fitzgerald Glutathione is the body's primary internal antioxidant, made using the amino acid cysteine, and it helps protect cells from oxidative stress. Beyond detoxification, research shows glutathione is involved in thyroid hormone metabolism, Glutathione for Food and Health Applications with Emphasis on Extraction, Identification, and Quantification Methods: A Review