GPT and fatty liver disease: Studies from Korea have demonstrated MASLD prevalence in pregnancy of approximately 19% with the use of ultrasound, versus nearly 30% with the use of the fatty liver index (FLI; a formula using BMI, waist circumference, triglycerides, and γ glutamyl transpeptidase), whereas only 13% had MASLD when defined by the Hepatic Steatosis Index (HSI), which is calculated from the alanine aminotransferase/aspartate aminotransferase (ALT/AST) ratio, patient sex, and BMI (9–11).