Weight Loss Fact

The storage form of glucose in muscles and the liver is glycogen which also holds water. If you limit your calories, and in particular go low carb, you’ll use up a lot of your glycogen which releases its bound water to be excreted, thus dropping your weight fast than you’re dropping fat. Once you top off your glycogen stores by eating a lot of carbs, the water will return and your weight will go back up. I don’t think this accounts for all the water-weight loss, though, because glycogen stores are maybe 1 pound total and carry another 2-3 pounds of water with it.