One of the most compelling arguments for me, against exercise being the key to the obesity epidemic, is the simple fact that we can eat in one minute enough fuel for one hour. The relative importance of not eating something vs. eating it and trying to use the fuel, is enormously weighted towards not eating something in the first place. This is not a new concept. Newburgh (1942) noted that a man can climb a flight of stairs or forego one quarter teaspoon of sugar.
