If a person only drinks water, he will not live for 10 days, and he will starve to death long ago. You can't just drink water to lose weight. Drinking water simply can't satisfy our normal life activities. As long as our body has metabolic waste and the stored energy is consumed, we will excrete our excrement, that is, feces, so we sometimes shit. Losing weight requires a reasonable diet and proper exercise, which is a healthy way to lose weight.