Diet before surgery, no need for special diet, to light and easy to digest, the night before surgery after 8:00 pm should be fasting water, to avoid affecting the next day’s surgery. You can eat more fresh fruits and vegetables, and you can also properly replenish the amino acids needed by the human body, such as consuming soybean products, dairy products, etc. You should abstain from eating greasy food, which may aggravate the burden on the stomach and intestines. Banning water after 8 o’clock on the day before the surgery is also to present an empty state in the stomach during the surgery on the next day, preventing the patient from nausea and vomiting triggered by anesthesia or surgery, which leads to misaspiration and may have the risk of triggering asphyxiation. Before the surgery, patients should relax and actively cooperate with the doctor for surgical treatment, and after the surgery, different nutritional supplements will be provided according to different types of surgeries.