I'm not saying that you should completely eliminate these drinks from your diet. However, you may want to replace them with water whenever possible and at least keep them at a low to moderate level. Water and Weight Loss Drinking water may be the most important piece to the weight loss puzzle. Water contains no calories, fat, or cholesterol and is low in sodium. It is nature's appetite suppressant, and it helps the body to metabolize fat.
Current research shows that low water intakes yield an increase in fat deposits.
Conversely, a high water intake reduces the amount fat deposits. Without enough water, the kidneys cannot function properly. As a result, some of their workload is pushed off onto the liver, in turn preventing the liver from operating at peak levels. Because metabolizing fat is a primary function of the liver, and because the liver can't function at peak levels when taking on the added workload from the kidneys, less body fat is metabolized and more is stored. This leads to either weight gain or reaching a plateau of weight loss.