GPT and diabetes mellitus: There are simple tests based on routinely available biochemical markers such as: AST/ALT ratio [6]; BARD score (BMI, AST to ALT Ratio, Diabetes mellitus) [7]; NAFLD Fibrosis Score [8]; APRI score (AST to Platelet Ratio Index); and FIB-4 score (based on age, AST/ALT activities and platelet count) [9].