Diabetic patients can consume vermicelli in moderation, but they should consume appropriate intake to reduce the intake of carbohydrates to avoid high blood glucose levels. Vermicelli is a starchy substance formed by processing sweet potatoes or potatoes, the main component is starch, but also contains dietary fiber, protein, calcium, potassium, phosphorus and other minerals, so diabetic people consuming vermicelli is equivalent to consuming carbohydrates, starch in the body is eventually converted into glucose, resulting in increased blood sugar. All diabetic people can consume fan in moderation, fan can provide part of the calories, to pay attention to reduce the consumption of carbohydrates in the main food, to maintain the total daily carbohydrate intake is stable, at the same time to increase the intake of fresh vegetables and other dietary fiber. Diabetic patients can have a reasonable diet and treatment under the guidance of a doctor, and monitor their blood glucose level regularly.