Huh? [ Inigo says at first, apparently not really grasping the question. But once his brain has had two moments more to process it, he seems to understand enough to add-- ]

Oh, I think meat makes him sick? One time he seemed really miserable and pale around the kitchen, so I helped him get away from there. I assumed it had something to do with him being a kirin [ hence the 'impure' thing, that's kind of what he figured may be the problem..?? ] but I never asked.