Exactly, when I quit smoking I found my appetite increased a lot, but I knew it was more of a psychological need to comfort myself and do something with my mouth/hands rather than actual hunger. So every time I got a craving I chewed sugarfree gum or ate a small piece of fruit, and drank a glass of water. I didn't gain any weight and after a few weeks I stopped having cravings.  But no, Fats get the slightest twinge of a craving and they're fupa-deep in  pint of Ben & Jerry's. Zero self control combined with a feeling that they constantly deserve treats and praise.