GPT and obesity due to melanocortin 4 receptor deficiency: We chose five predictors to represent the five categories of predictors (triglycerides for serum lipid, HbA1c for serum glucose, ALT and GGT for liver enzyme, and BMI for overall body obesity) and then performed GWASs for these 5 representative predictors and compared their GWAS variants with the significant imputed NAFLD GWAS variants.