First, the three principles of a week's fast weight loss method 1, don't reduce the amount of food, so the calorie intake will be reduced. Second, an empty stomach will keep the oppression going. Third, make defecation unobstructed. Two, five ways to lose weight in a week, no matter how many kilograms you want to lose in a short time, as long as it is harmful to your health and destroys the balance in your body, you must avoid it. Here are five practical methods. Method 1: replace rice with porridge, and reduce the calories by half. In this week, porridge is used instead of rice, which is the same weight as a bowl. The calorie of porridge is much lower than that of rice. Rich water can make you feel full, control your appetite and prevent and improve overeating.