Some studies indicate that elevated glutathione levels can help cancer cells resist chemotherapy, for some of the same reasons that glutathione protects healthy cells it acts as an antioxidant and detoxifies the chemotherapy drug that is meant to kill cancer cells
Spinach Spinach is a leafy green vegetable that is packed with antioxidants, vitamins and minerals, making it one of the best sources of glutathione
J Cell Biochem 120(5):68786885 Shi M, Bradner J, Hancock AM, Chung KA, Quinn JF, Peskind ER, Galasko D, Jankovic J, Zabetian CP, Kim HM, Leverenz JB (2011) Cerebrospinal fluid biomarkers for Parkinson disease diagnosis and progression
Glutathione is not merely a passive shield