Okay, here's what I found (didn't take long either =D) Water when dieting ~~~~~~*****~~~~~~ There are at least four reasons why water is important when dieting. Initial weight loss is largely the result of loss of water This lost water needs replacing, to avoid dehydration. The rate at which we burn calories (our metabolism) is a chemical process requiring water We need adequate water to ensure the smooth functioning of this process. Water helps to flush toxins out our system The more toxins in our body the less capable it is of losing weight Water helps to prevent constipation Healthy dieting means eating lots of fiber. However, unless we drink enough water, a raised fiber-intake can cause constipation.