People in the north and south are different, so the fastest and most effective diet is also poor. You can't eat a diet that doesn't agree with your appetite. As my friend said, eating more celery is good for losing weight, but I really can't smell celery ~ I ate amywish for a month or two, and half a bottle was over. If it's not too expensive, it's not bad to try. It's more practical than anything I've ever eaten. My face can tell that I've lost weight!