If you drink even moderately or have ever been told your liver enzymes look fine, GGT is the number worth understanding. Gamma glutamyl transferase is an enzyme involved in glutathione metabolism Gamma glutamyl transferase (GGT), Glutamyl Transpeptidase The oral administration of Lacticaseibacillus casei Shirota alleviates acetaminophen induced liver injury through accelerated acetaminophen metabolism via the liver gut axis in mice mSphere Disrupting Mitochondrial Pyruvate Uptake Directs Glutamine into the TCA Cycle away from Glutathione Synthesis and Impairs Hepatocellular Tumorigenesis: Cell Reports