I tried. It was useful at that time, but people would feel very uncomfortable. At night, their faces will become very bad, and then they will be sleepy, irritable and constipated. Then I resumed my normal diet for a few days, feeling that I didn't eat anything, and my weight came back unconsciously. Drinking more water will make them fat, which is very frustrating. I strongly suggest that you don't use it, or cut it in half every meal, then drink more water, exercise properly and keep your mouth shut.