Top 8 Glutathione Rich Foods For Glowing & Healthy Skin The reason some people stay sick despite treatment often comes down to one molecule. Glutathione is the most abundant antioxidant inside your cells. It protects mitochondria, recycles other antioxidants, and repairs 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 Which foods are highest in glutathione ?