New calculator shows that you need to burn more than 3,500 calories to lose a pound
You’ve probably heard the number-one “rule” of weight loss: It takes a 3,500-calorie deficit between calories consumed and calories burned to produce a one-pound drop in body weight. This old chestnut is more than 50 years old. Problem is, it’s wrong.
But now, there’s an explanation. Last summer, the National Institutes of Health, with a big assist from weight-change mathematician Kevin Hall, Ph.D., unveiled a weight-loss Body Weight Planner (BWP). It allows you to plot a realistic weight-loss strategy so you can measure your progress according to verified benchmarks rather than the theoretical (and wrong) 3,500-calories rule.