The aim of the study was to compare two groups of patients with GDM who were treated in the Diabetes Outpatient Clinic of the Clinical Hospital No. 1 in Zabrze, Poland and to answer the question of whether the relaxation of glycemic targets in patient treatment translated into obstetric outcomes of the compared groups, the prevalence of maternal and fetal complications, and the need to start insulin therapy. Here, INS is linked to gestational diabetes.