GGTLC1 and non-alcoholic fatty liver: NAFL: nonalcoholic fatty liver; NAFLD: nonalcoholic fatty liver disease; FIB-4: fibrosis-4; APRI: aspartate aminotransferase (AST) to platelet ratio index; ALT: alanine aminotransferase; GGT: gamma-glutamyl transpeptidase; AST: aspartate aminotransferase; DM: diabetes mellitus; BARD: BMI, AST/ALT ratio, diabetes.