I think bingeing is purely brain circuitry. People beat themselves up over responses they have very little control over (once started). The key is controlling your environment so the pattern doesn't start.

Reading about neural psychology in science magazines taught me a lot about this, so did reading David Kessler's book, whose name I've forgotten. Anyway, once you figure out there's a portion of your brain about as smart as a lizard is in charge of this stuff, you can use the other portions of your brain that are a little smarter to outwit the lizard.