What is Glutathione IV Used For? Fallbrook Medical Center 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 What to Avoid When Taking Glutathione (Must Read Guide) 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