I don't know whether it's a permanent thing, but for me eating meat and fat pushes "hunger pangs" (if that's what they are, and I'm not sure they're real "hunger pangs") away for many hours. However, I'm not sure if the effect lasts more than a couple of weeks. The craving for carbs comes back in my case.

I'm still experimenting. I returned to my "hot dog and Ben&Jerry's" diet a few months ago and tried it for a couple of weeks. I didn't gain any weight, but I didn't lose any this time (probably because I wasn't able to resist other carbs as well as in my first trial).

It may be that, at least in my case, these dietary changes work for a few weeks, then lose their power. I've been considering fasting a day a week to see how that goes...

Good luck.

Cheers,
Scott.