Eat fruit in moderation for breakfast, but combine it with food with carbohydrates and other ingredients. You can eat sweeter fruits, such as bananas, apples, dragon fruit, etc. Eating bananas not only can replenish energy and promote gastrointestinal motility, but also can promote a happy mood. In addition, bananas are rich in potassium and magnesium, potassium can prevent blood pressure and muscle spasms, while magnesium eliminates the effect of fatigue, but also can play the role of laxative, for the relief of constipation is better. However, fruits are relatively fast digested and cannot last the whole morning, so they need to be eaten together with foods containing protein, such as eggs and meat loaf.