I don't think anyone is suggesting that the same tricks will work for everyone. I've never been chronically obese so I wouldn't know what goes on in someone's mind at that point.

However I do know that it moved the needle significantly in _my_ life by changing my relationship with food so it's valuable to me. Losing the extra ~10 to 20 lbs of weight people gain in adulthood is something that people do struggle with even if it's not as dramatic as someone fighting obesity.