Obesity and overweight among children and adolescents is increasing at an alarming rate, which lead to the increase in the incidence of their related co-morbidities. Our objectives are to establish the following: 1) the prevalence of hyperinsulinism among overweight and obese pediatric patients. 2) The prevalence of type 2 diabetes mellitus (T2DM) among those with hyperinsulinism. 3) The prevalence of metabolic syndrome (MS) and its components among T2DM pediatric patients.