GPT and fatty liver disease: Several diagnostic panels have been shown to be able to discriminate between simple NAFLD (steatosis) and NASH, namely the HAIR score, which includes 3 variables (hypertension, ALT insulin resistance)38, the NashTest®, which measures 13 variables (weight, triglycerides, glucose, α2-macroglobulin and apolipoprotein)39, the SteatoTest®, which comprises 10 variables (simple blood tests, age, gender and BMI)40, and the hepatic steatosis index (HSI), which measures 4 variables (ALT/AST, BMI, gender, and diabetes)41.