Glucose tolerance refers to glucose tolerance test. Normal consumption of rice dumplings on the day before the glucose tolerance test generally does not have a great impact. Oral glucose tolerance test is a glucose loading test, the daily carbohydrate intake in the three days before the test is usually not less than 150g, and the test needs to be fasted for 8~10h before the test, so the normal consumption of rice dumplings before the test will not have much effect on the test results. Glucose tolerance test reflects the function of the body’s pancreatic islet β-cells and the body’s ability to regulate the sugar load to help diagnose diabetes. Before the test, it is necessary to rule out that the patient is not in a stressful situation such as acute infection, trauma, or surgery to ensure the accuracy of the test. Patients who need a glucose tolerance test need to be under the supervision of a doctor.