In normal people, eating too much can cause blood sugar to rise, and is closely related to the body’s own metabolism, so it is important to control the dietary situation. Blood sugar is affected by diet and insulin function. Normal people, if the standard diet, insulin secretion is normal, blood glucose will not rise significantly; but a one-time intake of too much food, will cause a large amount of glucose into the blood, the body’s normal secretion of insulin, can not be completely metabolized by the excess glucose, which will further lead to an increase in blood glucose. Prolonged overburdening of the pancreatic islet cells can easily induce diabetes, so it is recommended that during the dietary process, attention should be paid to avoiding excessive one-time intake of food, avoiding excessive intake of high-sugar food, to prevent damage to the body. If there is a sudden rise in blood sugar, you should go to the hospital in time and consult your physician for guidance.