There is no clear fastest food to lower blood sugar, vegetables can not lower blood sugar, high blood sugar is important to follow a healthy lifestyle, to maintain a low-sugar, low-fat diet. People with high blood sugar in the diet can be based on the physical labor situation, ideal body weight and other factors to develop a reasonable caloric intake, dietary nutrient distribution needs to be balanced, carbohydrate supply accounted for 50% to 60% of the total calories, protein intake accounted for 15% to 20% of the total calories, fat accounted for 25% to 30% of the total calories. In daily life, patients with high blood sugar should maintain a low-sugar, low-fat diet, you can eat some vegetables rich in dietary fiber, vitamins, less sugar, such as winter melon, cucumber, spinach, etc., which will not raise blood sugar but also can play the purpose of replenishing nutrients. However, patients with high blood sugar should not eat food such as chocolate, fatty meat and drinks. Patients with high blood sugar should standardize the use of medication under the guidance of the doctor, there is no clear fastest food for lowering sugar, and they should maintain a balanced and comprehensive nutrition.