Patients with high blood sugar can eat three meals a day with normal people basically the same food, just pay attention to the amount of proportion. Generally speaking, for patients with high blood sugar, three meals a day need to pay attention to maintain a low-salt, low-sugar, low-fat diet, the staple food in the whole grain food should be accounted for more than half, to change the previous only eat refined rice and white flour staple food with the way. Meat, three meals a day to reduce pork, beef and mutton, appropriate increase in chicken, duck and fish, especially fish can be appropriate to eat more. Fresh vegetables and fruits should be eaten in moderation, but fruits with high glycemic index, such as lychee and cantaloupe, should be eaten less. In addition, foods containing added monosaccharides or sucrose should be eaten less, mainly foods with added glucose, white sugar, etc., and should be consumed as little as possible. Patients with high blood sugar are advised to adjust the combination of various foods in three meals a day under the guidance of a doctor or dietitian to keep their blood sugar within the target range.