If the goal in exercise is to lose weight, have you tried replacing carbohydrates with fat in your diet? Forcing yourself to exercise will serve to work up an appetite and make you hungry, but not to lose weight. There is a correlation between exercising and being thin, but the causality is generally perceived the wrong way around. There is also a correlation between exercising and (temporarily) losing weight, but that is confounded by diet changes which typically involving reducing carbohydrate intake.

I've heard you mention Gary Taube's work, but not that you've read it. If you haven't read his book he has a new shorter on which is well worth reading, linked here: http://www.garytaubes.com/2010/12/inanity-of-overeating/ The appendix has specific diet recommendations. Also good are these notes: http://higher-thought.net/complete-notes-to-good-calories-bad-calories/