One of the main benefits waters has on losing belly fat is that it works as an appetite suppressant.
When a person does not feel hungry, they will most likely consume less calories.
When the stomach senses it is full, it sends signals to the brain to stop eating.
Water also takes up space in the stomach, leading to the feeling of fullness and reducing hunger.
Often, a person will mistake their feelings of hunger for dehydration therefore continually drinking water throughout the day will mean eating less.
source: express.co.uk