There is not yet any evidence that red wine can lower blood sugar. Lowering blood sugar is currently carried out mainly through strict dietary control and the application of drugs. 1. Strict dietary control: Nutrition needs to be balanced, regular diet, timed and quantitative, and try not to eat too much sugar and fat, so as to avoid poor blood sugar control. 2. Application of drugs: treatment can be carried out through oral glibenclamide, glipizide and other sulfonylureas, metformin and other biguanides, rosiglitazone, pioglitazone and other glitazones, dagliflozin, engliflozin and other sodium-glucose cotransporter protein 2 inhibitors, but also insulin injection and so on. In addition, lowering blood sugar also need to pay attention to appropriate exercise, weight control, drugs need to be applied under the guidance of a doctor.