Corn silk, also known as "dragon silk", is an ancient Chinese medicine blindly. Its taste is sweet and light, and its nature is flat. It belongs to the bladder, liver and gall bladder meridian. It has the effects of diuresis and swelling, clearing liver and choleretics, and can be used to treat edema, urine leakage, cholecystitis, high blood pressure, diabetes, and milk impaired. The record of corn silk being used as medicine was first seen in "Southern Yunnan Materia Medica", and later physicians gradually discovered that it had other functions. There is an ancient record of "curing diabetes with pork decoction". Modern studies have also found that corn silk can lower blood sugar because of the polysaccharides and saponins contained in it. In addition, corn beard also has the effect of lowering blood pressure and blood lipids, which is suitable for people with "three highs". Mulberry leaves have the effects of clearing lungs, relieving cough, clearing liver and improving eyesight, and can treat symptoms such as wind-heat and cold, lung-heat dry cough, dizziness, headache, and dizziness. The "Compendium of Materia Medica" records that "mulberry leaf is the medicine of Yangming Jing of hands and feet, and the decoction of juice on behalf of Ming can quench thirst". Modern studies have shown that the alkaloids in mulberry leaves have the function of inhibiting the rise of blood sugar and can naturally prevent diabetes. Therefore, corn silk and mulberry leaves are shared, and have the effect of lowering blood sugar.