Blood coral has no clear therapeutic effect on lowering blood sugar, patients who need to lower blood sugar should follow the doctor’s instructions for treatment. Blood coral, also known as submarine bird’s nest, is rich in iron, calcium, soluble fiber, a variety of minerals and vitamins and other nutrients, moderate consumption can replenish the body’s nutrients. Moderate consumption will not cause large fluctuations in blood sugar, but does not have the effect of lowering blood sugar. Patients who need to lower blood sugar should be under the guidance of a doctor for dietary control, appropriate physical exercise, and if necessary, take glucose-lowering drugs such as gliclazide, metformin, or insulin injection therapy, can play a role in lowering blood sugar. Patients who need to lower blood sugar should actively cooperate with the doctor’s treatment, rely solely on eating blood coral can not play a role in lowering blood sugar, please take a scientific approach to treatment.