Final answer:
The nurse would recommend including foods high in fiber, such as fruits, vegetables, whole grains, and legumes, in the child's diet to help with constipation.
Step-by-step explanation:
The nurse would recommend including foods high in fiber in the child's diet to help with constipation. These foods add bulk to the stool and help it move through the intestines. Examples of high-fiber foods include fruits, vegetables, whole grains, and legumes. It is also important for the child to drink plenty of water and engage in regular physical activity.