Prevention of hyperketosis should first identify the cause of the disease and then treat the cause. For example, high ketone body may be related to diabetic ketoacidosis, infectious diseases, severe vomiting, long-term starvation and so on. If the patient has diabetes mellitus, lifestyle adjustment and active treatment of diabetes mellitus should be carried out in daily life. Ketone body is the intermediate product of fat oxidation and decomposition, normal people have less ketone body in the blood, and elevated ketone body can be seen in long-term starvation, strenuous exercise, etc.; therefore, long-term starvation, dieting and weight loss should be avoided in daily life to maintain a regular eating habit, and strenuous exercise should be avoided. Patients with diabetes may also cause elevated ketone bodies, and should follow the doctor’s instructions to use drugs such as acarbose, metformin, or injectable insulin treatment, with appropriate exercise, dietary control, and maintenance of stable blood glucose can also help prevent high ketone bodies. You should maintain a healthy lifestyle in your daily life, and once you have high ketone bodies, you are advised to go to the hospital for medical treatment.