A 2-hour postprandial blood glucose of 8.0 mmol/L is more than normal for normal people and requires prompt medical attention to clarify the condition. For people with high blood sugar, there is no food that they absolutely can’t eat in their diet, but they should try to eat as little as possible of the food that can easily lead to fluctuation of blood sugar level, such as food with high sugar content and high-fat food. 1. Foods with high sugar content: such as white sugar, honey, chocolate, ice cream, cream cake, etc. 2. High-fat foods: such as pan-fried and deep-fried foods, doughnuts, oil cakes, fried chicken fillets, etc. In addition, fat meat, butter, suet, etc. should be avoided as much as possible to avoid affecting blood glucose control. High cholesterol foods are also eaten as little as possible, such as egg yolks and animal offal. People with abnormal blood glucose levels should eat a varied diet, small meals, regular meals, and reasonable control of total calories. Dietary adjustments should be made following medical advice.