The more dramatic that swing is, the more it's associated with type 2 diabetes risk and weight gain overall.
The problem here is that the study used such rapid weight gain as a result of a significant caloric deficit, says Shena Jaramillo, RD, dietitian at Peace and Nutrition."It's important to note many people who experience rapid weight loss are following a low-carb diet," she says."When we reintroduce any carbohydrate, we're going to see rapid weight gain.
That means you tend to eat less of them—because they're more satiating—and that lowers your caloric intake overall, which can result in weight loss or weight maintenance.