What Is Glutathione? Purifi IV Glutathione: What It Is, Why You Need It, How You Can Increase It The Amino Company Foods High In Glutathione Below are my top tips for boosting glutathione levels. Eat sulfur rich foods. Glutathione contains a sulfur chemical group, which is kind of like its secret weapon. Sulfur is a sticky, smelly molecule Eat These Foods to Increase Glutathione in Your Body Vitality Medical Wellness Center