The normal human body metabolizes about 2000 to 2400 calories a day, and it takes 7000 calories to burn one kilogram of fat. It is calculated that it takes 35,000 calories to lose 10 kg, which is 5 kg. Controlling the intake of 1500 calories per day can generate at least 500 calories per day. You can burn 35,000 calories in 70 days, which means you can lose 10 kg in two and a half months. Of course, if you add exercise, the heat difference will be bigger and the time will be shorter. However, losing weight too fast can easily affect your health. 2 months to lose weight 10 kg is more appropriate.