Excessive ketone bodies occur during weight loss, which can lead to digestive symptoms such as nausea, vomiting and weakness. In general, if there are no physical symptoms, the simple detection of elevated urinary ketone bodies requires no special treatment, and if physical discomfort occurs, the diet structure can be adjusted appropriately. In the process of weight loss, the presence of elevated urinary ketones indicates that fat is decomposing, and the purpose of fat decomposition and weight loss can be achieved. Patients who experience discomfort can increase carbohydrate intake appropriately to reduce urine ketone production. Also drink water appropriately to accelerate the metabolism of ketone bodies and improve the discomfort caused by elevated urinary ketones. It should be emphasized that if one has metabolic diseases such as diabetes and high blood sugar, it is not recommended to use ketogenic diet to achieve weight loss.