People with obesity are not thin people who couldn’t control their appetites (for whatever reason, psychological or neurobiological) and therefore ate too much. They’re people whose bodies are trying to accumulate excess fat even when they’re half-starved. The drive to accumulate fat is the problem, and it’s the difference between the fat and the lean. The hunger and the cravings, and then the failures and the sins, as Astwood suggested, are the results.