Eating whole wheat and rye is fine for diabetes, and the principle of moderation should be noted when eating whole wheat or rye for diabetes. Whole wheat and rye are staple foods, in which every 100 grams of whole wheat contains about 70.59 grams of carbohydrates, 1.5 grams of fat, and every 100 grams of rye contains about 75.43 grams of carbohydrates, 3.1 grams of fat. Relatively speaking rye is a little less fat content than whole wheat, but the overall difference is not significant, they both belong to the high starch food. Diabetic patients eat starchy staple food, the stomach and intestines are easy to quickly absorb, elevated blood sugar, is not conducive to the control of blood glucose levels, so diabetic patients, whether eating whole wheat or rye, need to pay attention to the principle of moderation. In addition to paying more attention to diet, diabetic patients also need to follow the doctor’s advice and active treatment, and regular review to understand the situation of blood sugar control.