Diabetics are most afraid of eating large quantities of foods that are high in sugar and carbohydrates, fat and cholesterol, and calories. A large intake of these foods may lead to fluctuations in blood sugar, which is not conducive to disease control. 1. High-sugar and high-carbohydrate foods: such as honey, sugar cane, cakes, sugar drinks, chocolate, etc. These foods are high in sugar content, high glycemic index, and rapid rise in blood sugar after consumption, which may lead to rapid fluctuations in blood sugar, and are not conducive to blood sugar stability. 2. High fat and high cholesterol diet: such as fat meat, bacon, chicken skin, animal fats, animal offal, etc., these foods are rich in triglycerides, cholesterol, too much of these foods are easy to combine with obesity, hyperlipidemia, atherosclerosis, and prone to cardiovascular and cerebrovascular diseases. 3. High-calorie food: such as fried food, instant noodles, peanut butter, etc., these foods are high in calories, and consuming too much of them leads to obesity and increased insulin resistance. The diet of diabetic patients should be based on a light, low-salt, low-sugar, low-fat diet to control daily energy intake. It is recommended that diabetic patients should rationalize their diets under the guidance of their doctors.