It is better for diabetic patients to eat raw apples, which are richer in dietary fiber and vitamins such as vitamin C, vitamin B1 and vitamin B2. However, the patient’s blood sugar value should be considered when eating apples. Due to the abnormal sugar metabolism of diabetic patients, it can lead to the abnormal fat metabolism, protein metabolism and electrolyte of the body, at this time, eating apples appropriately can supplement the needs of the body, but it is good for diabetic patients to eat raw apples, because many vitamins may be destroyed after the processing of cooked apples, and the absorption of nutrients by the body will be affected to a certain extent. As apples contain sugar, whether diabetic patients can eat apples should be judged according to blood sugar control. If blood sugar control reaches the standard, i.e. blood sugar control is 4.4-6.1mmol/L, 2h postprandial blood sugar is less than 7.78mmol/L, and glycosylated hemoglobin is controlled at 6.2%-6.3%, they can eat apples appropriately. If the blood sugar control of diabetic patients does not meet the standard, it is not recommended to eat either raw or cooked apples, but you can eat foods with lower sugar content, such as cucumbers and tomatoes. The best time for diabetic patients to eat apples is between two meals, and do not eat too much, eat half of a large apple, small apples can eat one, after eating apples pay attention to test blood sugar, if blood sugar rises more obviously, it is not recommended that patients continue to eat apples.