Long-term eating buckwheat noodle buns, when eaten in moderation, will not cause harm, can provide carbohydrates and other nutrients; excessive consumption may appear nutritional imbalance. Buckwheat noodle buns contain manganese, phosphorus, copper, protein, etc. Buckwheat buns are made from buckwheat flour. 100 grams of buckwheat flour contains 304 calories, 66 grams of carbohydrates, 9.7 grams of protein, 2.7 grams of fat. Generally eaten in moderation, can replenish the body’s required nutrients as well as calories. However, if consumed in excess for a long period of time it may lead to nutritional imbalance and may even aggravate the burden on the stomach and intestines. In daily diet, attention should be paid to balanced and comprehensive nutrition, and more food containing more vitamins, high-quality protein and dietary fiber. Long-term consumption of a single food may lead to nutritional imbalance.