It’s very difficult for the body to tell the difference between hunger and thirst. So if you’re walking around feeling a gnawing sense of hunger, you might just be dehydrated. Try drinking a glass of water instead of grabbing a snack.
Research has also shown that drinking a glass of water right before a meal helps you to feel more full and eat less. “Many people do find that if they have water before a meal, it’s easier to eat more carefully,” says Renee Melton, MS, RD, LD, director of nutrition for Sensei, a developer of online and mobile weight loss and nutrition programs.
One study, for example, found that people who drank water before meals ate an average of 75 fewer calories at each meal. That doesn’t sound like a lot –but multiply 75 calories by 365 days a year. Even if you only drink water before dinner every day, you’d consume 27,000 fewer calories over the course of the year.