People with diabetes can eat leeks. Leek is low in sugar, low in calories, rich in nutrients, rich in protein, fat, carbohydrates, dietary fiber, contains a lot of vitamins, carotene, calcium, phosphorus, iron, potassium, sodium, selenium, magnesium, etc. It is a suitable vegetable for diabetic patients, and is better used when diabetic patients are constipated. Diet therapy is the basic treatment for diabetic patients. For the sake of blood sugar stability, diabetic patients should choose vegetables with low sugar content and low glycemic index for consumption. Vegetables with sugar content below 4% such as large and small cabbage, cabbage, spinach, leek, tomato, pumpkin, winter melon, cucumber, zucchini, bitter melon, carrot, celery, etc.