2. Try not to eat foods containing carbohydrates in the morning, such as porridge, rice, potato cakes, oil cakes, fried dough sticks, steamed bread and other staple foods, which can increase the intake of green vegetables, such as cabbage, spinach, kelp and vegetables. Because green vegetables contain few calories, they will not cause excessive calorie intake. After breakfast, you can choose fresh fruits, such as apples and bananas, to supplement your vitamins and help protein in food be absorbed.