Though carbohydrates are not the enemy of weight loss, eating a lot more than you normally do over the course of one day or even a few days can make it seem like you’ve gained weight. “Carbohydrates are another type of food that can result in water weight showing up on the scale,” explains Alexia Lewis, RD. “This is why people lose weight faster initially on a lower-carbohydrate diet. The body doesn’t hold onto the extra water. It’s also why people gain weight quickly when they eventually go off that lower-carbohydrate diet; that water weight comes back, and the scale bounces up.”