30 X 3000mg L Glutathione Suppository with IMMUNE BOOSTERS NAC Me And Hue UK 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 Transcriptional profiling of liver tissues in chicken embryo at day 16 and 20 using RNA sequencing reveals differential antioxidant enzyme activity PLOS One Effect of short term exposure to ocean acidification on antioxidant response in the Patagonian scallop Zygochlamys patagonica (P.P. King, 1832) from the Southwest Atlantic Ocean