This book addresses the difficult field of pediatric glycometabolic disorders, which have often been considered the exclusive field of specialists in the sector. However, if all the intricate subjects of long-term treatment of type 1 diabetes are certainly a specialist field, the diagnosis of type 1 diabetes or its distinction from other forms of diabetes cannot be considered fields of strict specialization. Indeed, hypoglycemia, metabolic syndrome due to obesity, and drug-induced hyperglycemia are not specialized fields. Instead, we often see the clinician withdrawing from these pathologies. This book provides the trainee pediatric specialist with robust preliminary knowledge of the field.