Diabetics can eat purple potatoes, but should not eat too much. Purple potatoes belong to sweet potatoes, rich in dietary fiber and vitamins, for diabetic patients with stable blood sugar, can promote gastrointestinal peristalsis, increase the feeling of satiety and prevent premature hunger. However, it should also be noted that purple potatoes contain starch, which is converted to glucose in the human body, and if you consume too much purple potatoes, it may lead to increased blood sugar, which is not conducive to the stabilization of blood sugar. Diabetic patients in the diet process, to try to maintain a low carbohydrate, low fat intake, can be appropriate to eat more food rich in high quality protein, high dietary fiber. In addition, diabetic patients also need to carry out aerobic exercise according to their own situation, such as jumping rope, jogging, swimming, etc., can reduce weight and improve metabolism. Diabetic patients should adhere to the treatment prescribed by the doctor, pay attention to regular review.