Glutamine vs. Glutathione: Their Relationship and Glutamate's Role Troscriptions 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 Comorbidity associated glutamine deficiency is a predisposition to severe COVID 19 Cell Death & Differentiation Glutamine and glutamate: Nonessential or essential amino acids? ScienceDirect Glutathione Wikipedia