8 Ways to Boost Your Glutathione Levels Naturally Natural Ways to Increase Your Glutathione Levels BOOST GLUTATHIONE NATURALLY Sulfur rich foods (allium + cruciferous + poultry fish beef) boost glutathione synthesis. Vitamin C raises glutathione by fighting free radicals. Selenium rich foods support glutathione production. Glutathione rich foods Glutathione is such a critical soldier in our line of defense that our bodies make it themselves. We even have mechanisms that recycle and reuse it. But what happens when our toxic