I've changed my diet a good deal since buying a half gallon thermos and filling it up every morning, good thing is I don't have to remember to pour myself a glass, I always have water at hand. I think I eat less because when I'm dehydrated I'm in a bad mood, and when I'm in a bad mood I want to eat sugary and fatty things to feel better. For some reason my body never put together that I didn't need fat and sugar, I needed water. Go figure.