Let's clear this up Doesn't glutamine feed cancer? When pulsed and dosed correctly no. And the research is beautiful. Here's what L Glutamine actually does during cancer treatment: **Protects your Glutathione and Thioredoxin Antioxidant Pathways Synergize to Drive Cancer Initiation and Progression: Cancer Cell Glutathione Treatments 101: Part 1 The Mother of All Antioxidants BioDesign Wellness Center Antioxidants May Make Cancer Worse Scientific American The crosstalk between glutathione metabolism and non coding RNAs in cancer progression and treatment resistance ScienceDirect Glutathione Depletion and Stalwart Anticancer Activity of Metallotherapeutics Inducing Programmed Cell Death: Opening a New Window for Cancer Therapy ACS Omega