As a white alkaline food, the sour taste of lemon plays an appetizing role. Eating lemon can promote gastrointestinal peristalsis. Coix lachryma-jobi is rich in nutrition and low in calories. Eating with rice can not only meet the nutritional needs, but also relieve the accumulation of fat in the stomach, promote metabolism, promote diuresis and reduce swelling, and achieve the purpose of losing weight. Therefore, we must use red beans to treat edema. Coix seed porridge has a good weight loss effect and will not lose weight or harm the body. Especially for middle-aged and elderly people and obese people, the effect is particularly good. Therefore, lemon red bean barley drink can really help people lose weight, especially for some people who are obese because of edema, which can bring good weight loss effect.