Hello, how much water can you drink a day to lose weight? Drinking water is to expel toxins from the body. You should replenish the lost water and then replenish it as soon as possible. I think no matter how much water you drink, it has nothing to do with losing weight. If you want to lose weight, you should pay attention to your diet, try not to eat anything at night, and eat something like fruits or cucumbers and tomatoes. Just eat milk and eggs in the morning, and you will see the effect after a while. If you are not very fat, there is no need to lose weight. Your health is the most important thing.