2. Sugarcane is one of the few foods that should not be eaten when losing weight. Most fruits are mainly fructose, which has little effect on weight gain. On the other hand, sugarcane is mainly sucrose. After sucrose is ingested, it is rapidly decomposed into glucose under the action of disaccharidase in the intestine and absorbed by the human body. Glucose belongs to the priority energy supply substance of human body. When glucose exists, the body will not consume fat to provide energy, but use glucose to provide energy, which will affect the weight loss effect. It is not advisable to eat sugar cane when losing weight, especially not to eat more sugar cane.