Although many people say it is healthy, it is not. I lost weight in this way, too, because if I don't lose weight, I will change my surname and don't want to eat anything else. You are better than me. I lost 5 pounds on the third day, but I suggest only three days or a week. If you are not a big boy, don't spend a month. I don't know if you are well. I used to run every day, but I can't stand running in this way for half an hour the next day, so if you are a student, don't use this method for too long. Just three days. Use it once a month. However, if you run for 40 minutes to an hour every day and don't eat dinner at night, you will lose weight, but it will be slower.