Why People Overeat
Could it have something to do with the genetic reconfiguration of wheat? Cardiologist Dr. William Davis, author of Wheat Belly, blogs:

It's odd, however, that the increase in calorie intake got its beginning in the late 1970s and early 1980s, precisely when the genetically newly-reconfigured wheat was introduced, complete with its new gliadin protein, differing from its predecessors by several amino acids. Recall that gliadin has been shown to exert opiate-like effects, able to bind to opiate receptors in the brain, blocked by opiate-blocking drugs like naloxone and naltrexone.

We also know that, when people with celiac disease remove all wheat/gluten from the diet, calorie intake goes down 400 calories per day. We know that normal volunteers administered an opiate-blocking drug, such as naloxone or naltrexone, experience a reduction in calories of around . . . 400 calories per day. We also know that people with eating disorders, such as binge eating disorder, reduce calorie intake, yup, 400 calories per day when injected with an opiate-blocking drug. We also know that a drug company files its FDA application in 2011 for naltrexone, a drug already on the market for heroin addiction, for a weight loss indication; in their clinical trials, overweight people taking naltrexone reduced calorie intake by . . . 400 calories per day, losing 22 pounds in the first 6 months.

Anecdotally, we also know that, if all wheat, and thereby gliadin, is removed from the diet, appetite and desire for food is much reduced. Calorie intake goes down, weight drops, visceral fat stores shrink. Read the stories on this blog and its Facebook page and you can see that this is not the exception; it is the rule (with few exceptions).