Diabetic patients should not eat foods high in sugar, salt and fat, avoid drinking alcohol, and are advised to eat more fresh vegetables and fruits with low sugar content in moderation. Patients with diabetes should have strict and good dietary control, and should not eat foods high in sugar, such as milk tea, fruit juice, etc.; foods high in fat, such as fatty meats, fried foods, animal offal, etc.; and foods high in salt, such as bacon, salted vegetables, and pickled foods. The above foods may cause large fluctuations in blood sugar after eating, which is not conducive to blood sugar control in diabetic patients. Moreover, alcohol also affects the effect of controlling blood sugar, and may induce hypoglycemia when drinking on an empty stomach. In daily life, diabetic patients should maintain a healthy diet, appropriate physical exercise, and cooperate with the doctor for active treatment, all of which can help control blood sugar.