There are quite a few children with congenital heart disease who have small appetites and grow thin, so parents are often anxious to get their children to eat more by all means, or let them take some appetizing medicine. This is also a misconception. In fact, a child’s small appetite is largely caused by heart disease. The vast majority of children will have an increased appetite, gain weight, and improve their growth after their heart disease is cured. Before the heart surgery treatment, the child’s appetite will not be very effective just by taking appetizers or eating more food, and it may even increase the burden on the affected child’s heart. The correct approach is that you should normally choose nutritious foods to feed your child, such as eggs, chicken, fish, milk, lean pork, fresh vegetables, etc., try to eat small and frequent meals, and aim to treat the heart condition as early as possible.