The key to reducing the amount of exercise is to persist for a period of time, and the amount of exercise should not be too small, and it should be more than half an hour at a time. Exercise within half an hour does not reduce fat, and it can only be done after more time; It is normal that you will not lose weight within half a month after you start to increase your exercise. Don't lose heart, stick to it, and usually start to lose weight after half a month, so. The key to losing weight by exercise is exercise and persistence. I think for the sake of children, don't eat too little. A reasonable diet is the most important thing, usually 80% full. I wish your daughter success in losing weight:)