You know how good a slice of cheese pizza is after you stumble drunkenly into a pizza place1? The fats aren't content to have that be a rare occurrence, they're chasing that dairy dragon constantly.  1I don't even get that occasional joy anymore... did you know you can have Celiac disease your whole life and have it present at any time, even if you're already 24 (or 30 or 40 or 60, apparently)? I didn't. You have to cherish it.