Final answer:
Aggressive dietary management of Crohn's disease in children is necessary to address potential complications and symptoms, but impaired glucose tolerance is not a direct consequence of the disease.
Step-by-step explanation:
Aggressive dietary management of Crohn's disease is required in children to address potential complications and symptoms associated with the disease. These include growth failure, nutrient deficiencies, and protein-energy malnutrition. However, impaired glucose tolerance is not typically a direct consequence of Crohn's disease.