Red beans are flat and sweet and sour. Because red beans are good at benefiting waterways, the ancients said that "eating more makes people thin." Red beans are low in calories and rich in active ingredients such as vitamin E, potassium, magnesium, phosphorus, zinc and selenium. They are typical high-potassium foods. They have many functions, such as clearing away heat and toxic materials, invigorating the spleen and regulating the stomach, inducing diuresis to reduce swelling, ventilating and relieving annoyance, enriching blood and promoting lactation, and have a good curative effect on enteritis, dysentery, diarrhea and furuncle.

Various red bean soups. Every hot summer, the human body is prone to edema. Drinking red bean soup is the best way to reduce swelling. Edema patients have less urination. If you drink red beans as a drink at first, the swelling will be reduced the next day, and it may completely dissipate after taking them for six or seven days. The elderly have swollen legs and feet in summer, so they can eat red bean porridge to inhibit the recurrence of the disease. In addition to preventing and treating all kinds of edema, red beans can also relieve symptoms such as irritability, thirst and irritability caused by rising temperature.