Patients with altitude sickness can eat chocolate because eating chocolate appropriately will not have much adverse effect on patients with altitude sickness and will not aggravate their symptoms. Plateau reaction is the human body in the rapid entry into high altitude areas, due to the environment of low pressure and low oxygen, resulting in the human body discomfort symptoms, plateau reaction patients may appear insomnia, headache, limb weakness, loss of appetite, there may be breathing difficulties and other symptoms. Patients should pay attention to rest, avoid strenuous exercise, can carry out oxygen therapy, the symptoms are more obvious patients, need to apply drugs under the guidance of doctors for treatment. In the diet, we should pay attention to a high-carbohydrate diet to replenish the energy needed by the body, avoid alcohol and spicy and stimulating foods.