Eating low-sugar foods and high-sugar foods together will not lower blood sugar. Both low-sugar foods and high-sugar foods contain a certain amount of sugar, and as long as the sugar is ingested into the body is not able to lower blood sugar. Just relatively speaking, low-sugar food is not easy to lead to a significant increase in blood sugar, while high-sugar food intake, may lead to a significant increase in blood sugar. In addition, there is no single food that has the effect of lowering blood glucose. Patients with high blood glucose need to have a diversified diet, eat less or no food with high content of fat, sugar, cholesterol, etc., exercise moderately, maintain a reasonable body weight, and have their blood glucose monitored on time. Patients diagnosed with diabetes can take glucose-lowering drugs under the guidance of a doctor, such as glimepiride, reglaneride, metformin, rosiglitazone and so on. Insulin can also be injected subcutaneously when medication is not well controlled or when there is a contraindication to taking medication. Patients with high blood sugar must first seek medical attention and choose the appropriate method of treatment according to the doctor’s advice and guidance.