Functional and physicochemical properties during the transition from fresh to black garlic: a comparative review Discover Molecules Springer Nature Link What are the many health benefits of glutathione? Garlic as a functional food: a dual therapeutic strategy for cardiovascular diseases and cancer via shared molecular pathways ScienceDirect 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