Glutathione Wikipedia A study shows that the antioxidant glutathione feeds cancer cells Application of glutathione depletion in cancer therapy: Enhanced ROS based therapy, ferroptosis, and chemotherapy ScienceDirect Because glutathione levels decline as you age, and glycine can help slow the glutathione slide, it's a good idea to keep your levels high by eating protein rich foods, like organic poultry, grass fed Glutathione mediated nanomedicines for cancer diagnosis and therapy ScienceDirect