Love of sweets is usually due to the following reasons: 1, the most common factor is the endocrine metabolic factors, often due to pre-diabetes will appear paroxysmal hypoglycemic response, when the fasting blood sugar impaired period of time, there will also be a love of sweets. Therefore, if you love to eat sweets, you must go to the hospital to check the glucose tolerance test to screen whether there is glucose tolerance diabetes. 2, in some endocrine metabolism hyper metabolic diseases, such as hyperthyroidism, there will be an increase in the catabolic metabolism, so there will be excessive consumption of glycogen, the emergence of paroxysmal hypoglycemia at the same time, but also appear to love to eat snacks of the symptoms appeared. 3, in some connective tissue and tuberculosis, and other diseases, there will also be excessive body catabolism, so there is a need to eat snacks of the body, and the body will not be able to eat. In some connective tissue and tuberculosis diseases, there will be excessive decomposition and slowing down of synthesis, which will lead to wasting of the body and the clinical symptoms of eating sweets.