Positive correlations were detected between alanine aminotransferase (ALT) and FT3 (r = 0.221, p = 0.010), and negative correlations were noted between TSH and BMR (r = −0.618, p < 0.001) and between BMR and FT3 (r = −0.452, p < 0.001) in T2DM subjects with NAFLD. The gene discussed is GPT; the disease is metabolic dysfunction-associated steatotic liver disease.