It depends on your understanding of losing weight. If it is only for the temporary light weight of 6 kg, 12 days is no problem. But if it is really fat-reducing, 12 days is not enough, because the cell metabolism cycle of human body is 3 months, so it takes at least 3 months to make the lines look good. Here is a simple and quick way to lose weight. The principle of dehydration is to know that the human body is 60% water. /kloc-Don't eat salty food for 0/2 days. When the human body is short of salt, it is not easy to retain water. After adding some water, it will naturally lose weight.