Poria is generally not able to raise or lower blood sugar. Poria can play the role of tranquilize the mind, strengthen the spleen, diuresis and dampness (to promote the operation of water to dispel dampness), etc. From the perspective of herbs, Poria can be used for the treatment of diarrhea (diarrhea caused by a weak spleen), palpitations and insomnia and other diseases, but it can not play a therapeutic role in lowering blood glucose. From the food point of view, Poria can be combined with adzuki beans, barley porridge, appropriate consumption of some Poria porridge will not cause excessive elevation of blood glucose. Diabetic patients who need to lower blood sugar can be treated with dietary control, appropriate physical exercise, and taking glucose-lowering drugs such as gliclazide or insulin injections as prescribed by the doctor. Patients diagnosed with diabetes should standardize their treatment under the guidance of a doctor.