1. Plant flavonoids in mulberry leaves can scavenge free radicals, enhance blood circulation and prevent cardiovascular and cerebrovascular complications. In addition, deoxynojirimycin (DNJ), an effective component in mulberry leaves, inhibits the increase of glucose and prevents the decomposition of amylase, maltase, glucoamylase and α-glucosidase. It can be used in the final stage of starch digestion and has obvious inhibitory effect on disaccharidase (maltase and lactase), so it is an effective drug to inhibit postprandial blood sugar.

2. Momordica charantia glycoside can inhibit the absorption of glucose in intestine, inhibit gluconeogenesis in liver and increase the utilization rate of glucose. Supplementing islet nutrition, correcting disordered insulin secretion, and improving glucose metabolism and fat metabolism. In addition, bitter gourd also has the functions of improving eyesight and detoxifying, invigorating stomach and quenching thirst, and has the function of preventing and treating diabetic eye complications.

3. Pueraria lobata can increase the blood flow of brain and coronary artery and improve the blood circulation of heart and brain. Pueraria lobata extract has the effects of reducing myocardial oxygen consumption, increasing coronary blood flow, relieving angina pectoris, resisting arrhythmia and enhancing immunity, and has a good inhibitory and preventive effect on diabetic complications. Reduce insulin resistance.