I’ve heard it said that most of the time we feel hunger it is usually just thirst we’re feeling. Tell my stomach that. However it does make a certain amount of sense.
You can kill two birds with one stone by drinking a full glass of water about twenty minutes before you eat something.If it’s time for a meal after the twenty minutes is done and you still feel hungry by all means eat your meal. If not, wait a while.
The second thing is that by drinking the water you might feel fuller and not eat as much. Remember, it takes about twenty minutes for your brain to realize that you are full or not. It may help you to eat less than you usually would otherwise.