Diabetic patients can not eat dried sweet potatoes, sweet potato starch and sugar content in the food belongs to the high, generally not recommended for diabetic patients to eat sweet potatoes. Dried sweet potatoes are sweet potatoes after drying and the formation of the sugar content will further increase, diabetic patients eat sweet potatoes after the blood sugar will rise significantly. So diabetic patients try not to eat dried sweet potatoes, diabetic patients should choose some low starch content or sugar content is relatively low grains to eat. Diabetic patients are best to eat fresh sweet potatoes, fresh sweet potatoes instead of refined rice, refined noodles is feasible, low glycemic index, satiety, dietary fiber rich, is beneficial to diabetic patients. The preparation of dried sweet potatoes is not a substitute for staple foods, so it is not recommended for patients.