Dietary control is the foundation of diabetes treatment. Certain foods should be eaten sparingly or not because of their ability to rapidly raise blood sugar or cause chronic complications of diabetes. Understanding these foods and paying attention to them in the diet will help improve blood sugar control and reduce the occurrence of diabetes complications. 1, diabetic patients should not eat white sugar, brown sugar, icing sugar, glucose, maltose, chocolate, milk sugar, fruit sugar, preserves, canned fruit, soft drinks, fruit juice, jam, ice cream, sweet drinks, sweet cookies, sweet bread and sugar pastries and other foods. The above foods are high in monosaccharides or disaccharides, and diabetic patients are prone to hyperglycemia after eating them. 2, high calorie content of peanuts, melon seeds, cashew nuts, pine nuts, walnuts should not be eaten often, high sugar content of foods such as vermicelli, sweet potatoes, potatoes, taro, corn, rhizome, chestnuts, mao beans and other dry beans should not be used as vegetables for diabetics. As a side dish, the supply of staple foods should be reduced. And should be limited in quantity. 3, diabetic patients should not eat cholesterol-rich foods and animal fats, such as animal brain, liver, heart, lungs, loin, egg yolk, fatty meat, butter, pork, beef and mutton oil, etc., eat less fried, fried, fried and crispy food, because the above foods are prone to elevated blood lipids, leading to increased incidence of atherosclerosis and cardiovascular disease. 4, excessive alcohol can cause disorders of lipid metabolism and increase the burden on the liver; long-term alcohol consumption can increase the incidence of complications of diabetes; insulin injectors drinking alcohol on an empty stomach can cause hypoglycemia. Therefore, diabetic patients should not drink alcohol. If you want to drink alcohol, you can drink a small amount of beer with low alcohol concentration. 400 ml of beer provides about 112 kcal of caloric energy, which is equivalent to 30 grams of grain, and this part should be subtracted from the main diet accordingly. 5, the diet should be light not too salty, reduce the consumption of processed or preserved foods to prevent excessive sodium intake, because high sodium is prone to induce hypertension and atherosclerosis.