People with good digestion and absorption ability can gain weight by drinking water. The more they exercise, the stronger their digestion and absorption, so they can't lose weight. Unless it is very heavy exercise, consumption is more severe than absorption, which is asking for it. Exercise more, basically achieve the balance between food calorie intake and exercise consumption. I have used this product before, and now it is sold on Taobao. It is said that it is better than before. You can use it to see how it works.