It's science but it doesn't give very useful actionable things you can do to change your weight. Generally people interpret it to mean you get two inputs you ca

It's science but it doesn't give very useful actionable things you can do to change your weight. Generally people interpret it to mean you get two inputs you can change, food intake and exercise, and they're independent. Unfortunately, those two things are not independent. Increased exercise often leads to increased hunger which leads to increased eating for many people in the real world. Just saying "eat less" in this context is about as useful as telling someone to be better at their job. Many people will not have the willpower to sustain eating the diet they currently eat but eat less of it. Decreasing calories consumed can lower basal metabolic rate. You can easily google for data on this from the Biggest Loser contestants. There are also other ways to modify those two parameters that don't involve food and exercise. Are you a type 1 diabetic and want to lose weight? Just under dose your insulin and the pounds will fly off. Want to lose weight but you aren't diabetic? Take a little DNP. Want to lose weight faster? Take a little more DNP. Just don't take too much or instead of losing weight you'll die of hyperthermia. Taking DNP or under dosing insulin are not things I would ever recommend anyone do but they are both examples of non food and activity related ways to affect calories out.