Yeast has no specific therapeutic effect on diabetes. Yeast is a class of unicellular fungi that can ferment sugars, and is commonly used to make steamed bread, brewing and other food preparations, and there is no clear evidence that yeast has therapeutic value for diabetes. Diabetes mellitus is an endocrine system disease with abnormal sugar metabolism. Diabetic patients often develop coronary artery disease, peripheral nerve damage, diabetic nephropathy, diabetic retinopathy, diabetic foot, skin infections and other multi-system complications in the later stages of the disease. Therefore, strict control of blood sugar is needed to avoid excessive fluctuations in blood sugar. Diabetic patients should pay attention to protein supplementation, give priority to low-sugar and low-fat food, strictly limit the intake of candy, sweet cakes, ice cream, sugary drinks, etc., and try to consume more rough rice, noodles and miscellaneous grains, and exercise regularly. Yeast has no therapeutic effect on diabetes, and attention to diet control and healthy exercise is of great value to the treatment of diabetic patients.