Since the GALNT2 gene plays a role in lipogenesis in fat tissue (obese phenotype), we further analyzed the effects of GALNT2 gene polymorphisms on clinical and metabolic parameters in GDM patients and control subjects stratified into overweight/obese (BMI≥25 kg/m2) and nonobese (BMI<25 kg/m2) subgroups. This evidence concerns the gene GALNT2 and gestational diabetes.