well, depends on the pizza, what's on it, and how hungry I am. Back when Pizza Hut did those "Big Foot" pizza's, I could down 1 of those by myself easily when I was starving.
These days though, I can maybe handle 3 slices if I'm REALLY hungry. I don't really eat all that much these days, my stomach can't handle it. I'm still only able to eat one full meal per day without getting sick.
