2. After the human body ingests sugary sweets, the blood sugar concentration rises, and islet β cells begin to secrete insulin, which helps muscle tissue to ingest glucose and store it in the form of muscle glycogen and liver glycogen. However, if one-time intake of polysaccharide exceeds the storage capacity of glycogen, excess glucose will be brought into fat cells by insulin and converted into fat to be stored by the human body. From this perspective, eating too much sugar is really easy to get fat.