Here we used a well validated Bscl2-null (seipin knockout) mouse model of CGL type 2 (CGL2) to examine the effectiveness of a GLP-1R agonist, in treating lipoatrophic diabetes, hepatic steatosis and hyperphagia in CGL to inform the adoption of this class of drugs for individuals with lipodystrophy. This evidence concerns the gene BSCL2 and fatty liver disease.