I spent 4 years talking about mental health and the connection to the gut brain axis. At the time I thought I was reaching the root of the problem by addressing the PDF) GlutathioneRelated Metabolite Levels and Enzyme Activities in Depression: A Systematic Review and MetaAnalysis Glutathione alterations in depression: a meta analysis and systematic review of proton magnetic resonance spectroscopy studies Psychopharmacology Springer Nature Link Prefrontal Glutathione Levels in Major Depressive Disorder Are Linked to a Lack of Positive Affect Jenny McCarthy's Glutathione and Tylenol Claims: Medical Toxicologist Weighs In MedPage Today