During the postoperative recovery period, you should eat less and more meals (3 main meals and 3 complementary meals): 1. Feed mother’s milk, milk, rice paste, appropriate concentrated liver oil drops calcium tablets, fresh fruit juice, vegetable juice, puree for children with precordial disease <3 months old. About 6 times a day milk. 2.3-10 months old children with precocious heart disease gradually increase egg yolk (1/4-1/2-1), egg custard, thin porridge, vegetable porridge, crumbled noodles, minced meat porridge, etc. Supplementary food can be added with fruit juice, cookies, etc., and reduce the number of milk feedings. 3, > 10 months of age, children with precordial disease should be able to eat noodles, eggs, rotten chicken, fish, shrimp and vegetables, small pieces of fruit. Children with precocious heart disease should pay attention to nutrition to prevent edema or malnutrition caused by low protein. If the heart function of children with precocious heart disease is poor, control the water intake appropriately, pay attention to the urine volume and urine color to avoid increasing the burden on the heart and lungs. 3 main meals (for reference) for children with precocious heart disease: milk, porridge, eggs, etc. for breakfast; chicken, fish, eggs, shrimp and other high-protein, high-calorie foods should be the mainstay for lunch and dinner, supplemented by fresh vegetables and a small amount of rice and noodles, with seven or eight portions full. 3 times supplementary food time for children with precocious heart disease (reference): 9-10 am, 2-3 pm, and before going to bed at night. Fruit is the main food, supplemented with good quality cakes, cookies and other foods.