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 The Best Foods To Boost Your Body's "Master Antioxidant" Eat These Foods to Increase Glutathione in Your Body Vitality Medical Wellness Center An investigation on glutathione derived from spinach and red cabbage leaves and their effects of adding to meat patties ScienceDirect