Drinking water is revving up your metabolism. There was a study recently published in the Journal of Clinical Endocrinology and Metabolism from a research centre in Berlin. It showed that people who consume two litres of water a day can burn up to an extra 150 calories per day. I know that doesn’t seem like much but that converts into about 5 lbs. per year of weight loss that you don’t even have to worry about because it’s being burned off by simply drinking more water.