Diabetic patients can not eat food, including the following major categories. First, like peanuts and melon seeds, high-calorie, high-fat food, a large amount of use is certainly not conducive to weight maintenance and lipid control, indirectly affecting the control of blood pressure and blood sugar. Second, desserts should be avoided, desserts basically do not touch, rice can not eat full, fruit can not eat more. Third, to prohibit alcohol, because the nature of alcohol and its metabolites, the control of diabetes and the occurrence and development of its complications, will bring many adverse effects, so it is best for patients with diabetes not to drink alcohol. Fourth, the food containing sugar should never eat more, because it will directly affect the blood sugar, which is very detrimental to the condition. Fifth, for high-fat food and high cholesterol food, diabetic patients should not eat more, the complications have a more serious impact. Sixth, fried food should be eaten less. Seventh, the taste of too heavy food can not eat more. Diabetic patients try to eat lightly, not too salty. In short, the dietary principles of diabetic patients should be low salt, low fat, low sugar diet.