The treatment of eating without flavor should be based on different causes, and the common causes include physiological decompensation, upper respiratory tract infection, and diabetes. Treatment includes general treatment, medication, etc. 1. Physiological hypoplasia: Due to ageing, the taste buds of the tongue decrease. At this time, it is necessary to strengthen exercise, minimize tongue brushing, and eat less stimulating food. 2. Upper respiratory tract infection: pay attention to rest, drink more water, light diet, etc., when the disease is cured, the sense of taste will also be restored. 3. Diabetes: loss of taste can be caused by peripheral nerve complications. Dietary attention to eat more food containing dietary fiber, small meals, low sugar and low fat; oral hypoglycemic drugs such as metformin or insulin injection as prescribed by the doctor, in order to control blood sugar. There may be other reasons for the lack of taste in food, such as long-term use of drugs, etc. It is recommended to go to the hospital in time, under the guidance of the doctor for standardized treatment. The use of drugs must follow the doctor’s instructions, not blindly use their own drugs, so as not to cause adverse consequences.