RBP4 and metabolic dysfunction-associated steatotic liver disease: In a previous study, we reported adequate vitamin A intake in patients with NAFLD, which was similar to healthy controls,[19] while others found lower intakes in NAFLD.[20] Patients with NAFLD had also higher serum retinol levels [21] and higher plasma RBP4 levels compared to control subjects,[22,23] whereas RBP4 was not different between simple steatosis (SS) and NASH.[24–26] Another report showed that hepatic retinol reserves in patients with NASH were lower compared to those with SS.[27]