It is recommended to eat breakfast at 7-8 am is more appropriate. Eating breakfast too early or too late may affect the body’s absorption and utilization of nutrients in food, and may even affect the normal functioning of the body’s system tissues. Breakfast is consumed too early, the human stomach, intestines, liver and other digestive system tissues, is still at rest stage. At this time to eat breakfast will affect the normal metabolism of the above organs and tissues detoxification, easily lead to the formation of harmful substances in the tissue internal retention phenomenon, which is not conducive to the development of human body health; on the contrary, the consumption of breakfast time is too late, the stomach due to the lack of material decomposition transformation, gastric glandular tissue secretion hyperfunction, not only easy to cause the human body to appear stomach pain, acid reflux, nausea and other adverse symptoms reaction, and will directly affect the body’s blood sugar level. And it will directly affect the blood sugar level in the body and induce secondary symptoms such as dizziness, weakness and shortness of breath. It is recommended to choose foods with high protein, high vitamin and high calories, such as eggs, milk and bread, for breakfast. Because of the morning stage, the body’s energy needs are relatively strong, the above foods can better supplement the body’s energy needs. In addition, the interval between breakfast and lunch is kept about 4 hours, so as to avoid causing indigestion.