Compendium of Materia Medica says that kumquat peel "tonifies the same medicine, purges the same medicine, ascends the same medicine and descends the same medicine." Western medicine believes that kumquat can be used to treat chest tightness, drunkenness, thirst, indigestion, loss of appetite, cough and asthma. Patients with cholecystitis, hepatitis, gastropathy, tracheitis, hypertension and angiomalacia often eat kumquat or kumquat cake, which is helpful for treatment. According to the Japanese medical journal, kumquat can enhance the cold resistance of human body, prevent colds, reduce blood lipids, and help prevent and treat senile diseases. Kumquat seed can treat eye diseases, colic, pharyngitis and so on. Kumquat root has the effect of promoting qi circulation and resolving hard mass, and can treat stomachache, vomiting, hernia and colic.

Kumquat not only contains a variety of vitamins, carbohydrates and so on. However, the cost of nutrients is overwhelming in citrus fruits, which is a fruit that people like to eat. Kumquat also has anti-inflammatory, expectorant, anti-ulcer, digestive aid, blood pressure lowering, heart strengthening, qi regulating and cough relieving effects, and has obvious curative effect on bronchitis.