> It's not the be-all or end-all, but if you're consuming less than you use, you'll lose weight. I'm not really weighing in on one side or the other in terms o

> It's not the be-all or end-all, but if you're consuming less than you use, you'll lose weight. I'm not really weighing in on one side or the other in terms of the overall argument, but unfortunately metabolisms are rather sneaky. Calories in < calories out = weight loss sounds nice, but unfortunately calories out is a moving target in that your metabolism will ratchet down and be more efficient and/or consume muscle if calories in is insufficient.