> There are large subjectivities involved, but when I got down to a 22 BMI at one point via the hard work and discipline route, I was constantly overwhelmed with thoughts of food, literally every waking second; this was despite trying and adhering to probably a half dozen different diets. Most people able to maintain a constant 22 BMI don't experience this.

Out of curiosity, what kind of food were you obsessing over, specifically? Why were you craving that kind of food, instead of, say, lettuce?