L Glutathione vs. oxidized vs. Reduced Glutathione Glutathione and Vitamin C: Do They Work Together? Life Extension Glutathione is such an important antioxidant in human physiology, meaning it acts to combat oxidative stress. Strategies for increasing glutathione include: Consume sulfur rich foods like cruciferous vegetables Ensure you get Figure 3 3, Formation of N Acetyl S (n propyl) L cysteine from 1 Bromopropane via Conjugation with Reduced Glutathione (GSH) Toxicological Profile for 1 Bromopropane NCBI Bookshelf