I know I don't post much here but has anyone read Brain over Binge? It is quite fascinating. It isn't IE really but someone who had no weight problem, started dieting and as a result suffered from Binge Eating Disorder/Bulimia until they realized that the reason they urged to binge was initially due to dieting and then as a habit. The entire idea is that restriction/dieting caused the issue in the first place. I know many of us started dieting young (I was probably 10 when I went on my first diet).
You can't out-exercise poor eating habits.