GPT and type 2 diabetes mellitus: The following circulating biomarkers were higher in T2D developers: ketone bodies (β-hydroxybutyrate, acetoacetate and acetone), ALP, ALT, AST, creatinine, hsCRP, FPG, ferritin, GGT, GlycA, H2P, hemoglobin, hematocrit, insulin, BCAAs (isoleucine, leucine, valine), total cholesterol, triglycerides, TMAO, transferrin, and urea.