" Even as low-carb diets were validated as a means to lose weight, however, their theoretical underpinnings were dismantled by other research. Careful studies revealed that the weight loss that resulted from low-carb diets had little to do with ketones, insulin, and cravings. The real reason people lost weight on the Atkins diet and other low-carb diets was that they ate fewer calories. Scientists were able to show that when calories were held equal, low-carb and low-fat diets yielded equal amounts of weight loss. "

― Matt Fitzgerald , Racing Weight: How to Get Lean for Peak Performance