The time to start eating the night before the physical examination should not be later than 8:00 pm. The night before the physical examination dinner normal diet, do not overeat, and do not eat too greasy, otherwise it may affect the examination results. General hospital routine physical examination, basically will draw blood to check fasting blood sugar, blood lipids, liver function, and ultrasound of the liver, gallbladder, pancreas and spleen, which all require fasting. Fasting refers to a longer period of time without any caloric intake. One of the blood lipid tests is called triglycerides, which requires a fasting period of 12-16 hours. Hospital physical exams are usually drawn between 8-10 a.m., so after 8 p.m. on the first night of the physical, you should not eat any food, including fruit, small dishes, drinks, beer, snacks and anything else containing calories, and you can drink water appropriately.