Clinically, diabetic patients, especially elderly diabetic patients, can suffer from constipation due to slow gastrointestinal motility, which can be improved by eating the following foods: 1. green leafy vegetables rich in crude fiber, such as cabbage, rape, spinach, bean sprouts, bean seedlings and celery, etc., because the above-mentioned green vegetables are rich in crude fiber, which can increase intestinal volume and promote intestinal motility, thus improving the symptoms of constipation. 2. 2.If the blood sugar control is stable, you can take a banana between meals to increase the intake of fiber and improve the symptoms of constipation. 3.Reduce the intake of refined rice, cakes, desserts and meat, and increase the intake of coarse grains as the main food to promote intestinal peristalsis.