The love of sweets is usually due to the following reasons: 1. The most common factor is endocrine metabolic factors, often due to pre-diabetes will appear paroxysmal hypoglycemic reaction, when the impaired fasting blood sugar period, there will also be a love of sweets occur. Therefore, if you love to eat sweets, you must go to the hospital for a glucose tolerance test to screen for glucose tolerance to diabetes. 2. In some endocrine metabolic diseases, such as hyperthyroidism, there will also be an increase in catabolism, so there will be excessive consumption of glycogen, and paroxysmal hypoglycemia will occur, along with the symptoms of love to eat snacks. 3. In some connective tissue and tuberculosis diseases, there is also a situation of excessive catabolism and slowed synthesis in the body, when the body will appear to be thin and like to eat sweets clinical symptoms.