Spinach: The Ultimate Supergreen 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 Phytonutrient profiling of spinach leaves using LC ESI QTOF MS: Linking polar and non polar extracts to enzyme inhibitory properties ScienceDirect The 7 Best Glutathione Foods Foods Highest in Glutathione What Foods Are High In Glutathione? Route2Health