As someone who lost 20kg in 5 months by eating less, I don't appreciate being called full of shit.
First, too much water can cause hyponatremia. Drinking 2 to 3 litters of water / day is fine, but reach 5L and it's getting dangerous. And one of the main advantages of drinking water is it keeps your stomach full, meaning you don't feel hunger, and thus eat less.
Second, what's the purpose of your 3rd point if not to reduce calorie intake?
First, too much water can cause hyponatremia. Drinking 2 to 3 litters of water / day is fine, but reach 5L and it's getting dangerous. And one of the main advantages of drinking water is it keeps your stomach full, meaning you don't feel hunger, and thus eat less.
Second, what's the purpose of your 3rd point if not to reduce calorie intake?