Whether or not glutamine can cure insomnia, according to the degree of insomnia to determine, as follows: 1, can cure insomnia: if it is mild insomnia, the patient exists in some of the symptoms of vegetative nerve dysfunction, the symptoms are relatively mild, then after oral glutamine, some patients can improve their sleep. 2, can not cure insomnia: if it is the vegetative nerve dysfunction of the patient is more serious, manifested as severe insomnia, and the symptoms of panic, chest tightness, sweating, fear of cold, fear of heat, acid reflux, belching, dizziness and other symptoms, then oral glutamine may not be too obvious. At the same time there is panic, chest tightness, sweating, fear of cold, fear of heat, acid reflux, belching, dizziness, dizziness and other symptoms, then oral glutamine, the improvement of symptoms may not be too obvious. Therefore, as to whether taking Glutamine can cure insomnia, it depends on the cause of insomnia and the degree of insomnia of the patient to decide.