Study Finds Cancer Cells Use Glutathione as Fuel to Drive Growth Glutathione: Master Antioxidant, Reducing Oxidative Stress, and Detoxification Although the antioxidant glutathione is linked to cancer, this new research you should stop eating antioxidant rich whole foods. Eating a balanced diet with fruits and vegetables is important. It Catabolism of extracellular glutathione supplies cysteine to support tumours Nature