Diabetic nephropathy, as the name suggests, is a complication of the kidneys caused by long-term poor control of blood sugar in diabetes. Its most typical symptoms include significant proteinuria and potential body edema. Generally, there is no particularly good method to treat diabetic nephropathy; firstly, it is necessary to control blood sugar well, ensuring that fasting blood glucose does not exceed 7 mmol/L, and blood glucose two hours after a meal does not exceed 10 mmol/L. Additionally, some kidney-protective measures can be used to reduce urinary protein, etc. Furthermore, foods high in sugar, fried foods, and those high in starch should be avoided, such as potatoes, taro, sweet potatoes, and vermicelli, all of which should be consumed less.