"People who go on low-carb diets often see rapid weight loss within the first few days," Dr. Webster told POPSUGAR. "This is because our carbohydrate stores, known as glycogen, hold on to water. When we start using up that stored carbohydrate, water leaves the body too, so most of the initial weight loss is 'water weight.'"
In all reality, the pounds will not come off as fast after the first week or two, but you should continue to lose weight at a slow and steady pace. Dr. Webster also noted that the same effect can be seen with other diets, so it's consistency that really makes the difference.
Image Source: POPSUGAR Photography / Sheila Gim