Of the other tested cytokines, IL-1β serum concentrations were lower than the detection thresholds in most patients; 12 patients with NAFLD had elevated IL-1β, a median of 82 pg/mL (IQR 72–178), and 7 without NAFLD (85, IQR 34–96 pg/mL). Here, IL1B is linked to metabolic dysfunction-associated steatotic liver disease.