Fluctuation of blood sugar during the day in a patient with diabetes is largely determined by the nature and mode of his diet. In this regard, nutrition planning, taking into account the glycemic effect of food and the maximum compliance with the insulin therapy regimen, is one of the main links in good control of diabetes. Planning a child’s nutrition is imperative to provide for his age-related energy needs and the optimal ratio of basic food ingredients (proteins, fats and carbohydrates) without lowering the daily calorie rate. The adequacy of the energy and biological value of food to the age requirements of the child is assessed by the normal rate of physical and mental development of the sick child, as well as his good health. However, a child should not only receive food calories, proteins, fats and carbohydrates “due” to him by age, but also enjoy the food. It depends on how diverse the patient’s diet is and how the doctor takes into account the stereotype of the family’s nutrition and the patient’s eating habits: if the regimen and nature of the food recommended by the doctor is familiar and convenient for the patient, this will not create difficulties for observing the basic “dietary” rules.