Because romaine lettuce has a glycemic index, eating romaine lettuce may raise your blood sugar. Lettuce is a kind of food rich in dietary fiber, vitamins, minerals, although lettuce contains less sugar, lettuce glycemic index 15, but after eating will still appear elevated blood glucose, just the role of glucose is not obvious. Diabetic patients can eat some vegetables and grains and cereals such as spinach, leeks, soybeans, etc., at the same time should pay attention to a reasonable diet, control the intake of sugar, avoid spicy and stimulating food. Diabetic patients can carry out moderate exercise such as walking, swimming, etc., which helps the metabolism in the body. It is recommended that patients go to the hospital in time for examination, and rationally adjust the diet under the guidance of the doctor.