WebMD describes the healthy wonders of water. For more on the benefits of water visit www.webmd.com. Stay Slimmer With Water (1 of 8) Trying to lose weight? Water revs up metabolism and helps you feel full.Replace calorie-filled beverages with water, and drink a glass before meals to help you feel fuller.Drinking more water helps amp up metabolism - especially if your glass is icy cold. Your body must work to warm the water up, burning a few extra calories in the process. « ‹ of 8 › »