About GGT
GGT (Gamma-Glutamyl Transferase) is a liver enzyme uniquely sensitive to alcohol intake, non-alcoholic fatty liver disease, and bile duct stress — often rising before ALT, AST, or ALP show any measurable change. Persistently elevated GGT, even at levels still within many labs' 'normal' range, is an independent predictor of cardiovascular disease, metabolic syndrome, and liver disease progression. Alcohol reduction typically normalizes GGT within 2–4 weeks, making it a useful monitoring tool.