Umm...any human food lol....well we've tried not to feed them much anymore though. Just treats every so often. BREAD, Reggie LOVES bread! It has to be his favorite. Smokey loves it too, but he has a special thing for pita bread, I don't know why. He wont stop barking if you have some. If the brick of cheese gets dried up on the end, we always cut that off into pieces and they love cheese too. But I really think they like those Canine-Carryouts treats as much as any human food!