Nevertheless, serum copper (SMD = −0.02, 95% CI = [−0.32; 0.28], p = 0.88) and ceruloplasmin (SMD = −0.03, 95% CI = [−0.69; 0.63], p = 0.93) were not associated with NAFLD. The gene discussed is CP; the disease is metabolic dysfunction-associated steatotic liver disease.