Red grapefruit is a kind of pomelo, pomelo contains a certain amount of carbohydrates, vitamins and trace elements and other nutrients, including vitamin C, flavonoids content is more, Chinese medicine nutrition that pomelo has a certain amount of elimination of food, phlegm, sobering effect. Chinese nutritional science believes that pomelo flavor sweet, sour, cold, attributed to the liver, spleen, stomach meridian. Pomelo can assist in clearing heat from the lungs and relieving cough and yellowish phlegm caused by phlegm-heat. Pomelo has a sour taste, which can help to relieve food stagnation (the accumulation of food in the stomach due to indigestion) and poor diet by appetizing the stomach. People with cold spleen and stomach are not recommended to consume too much pomelo. Foods have limited effects compared to medicines, and it is difficult to achieve the therapeutic effects of medicines. Foods are generally not used to treat diseases.