1. Patients with brain tumors should adopt a diet with high protein, vitamins and calories. Dietary protein can be obtained from animal foods and beans, such as fish, eggs, milk and bean products. High-vitamin foods can eat more fresh vegetables and fruits, such as apples, oranges and various green leafy vegetables. High-calorie foods can be ingested from digestible sugar foods, such as cakes and chocolates.

2. Patients with brain tumors should eat more foods rich in potassium when using dehydrated diuretics, such as bananas, oranges, corn and celery.

3. Loss of appetite is a common problem in patients with brain tumor, especially glioma. In addition to the disease itself, the causes of loss of appetite are mostly caused by psychological factors such as emotional depression, excessive tension, fear and anxiety. Attention should be paid to color, aroma, taste and shape in cooking and processing of meals to stimulate patients' appetite.

4. Patients with brain tumors should maintain good eating habits, don't overeat, pay attention to food hygiene, don't eat cold and hard food, quit smoking and drinking, and develop good defecation habits.