"Right," said Prompto, "and that's fine, because, believe me, I am the last person that wants to expose a bunch of unknown daemons to a substance that we don't know how they'll react to, but my point is that I don't see what's wrong with giving Foomy a little peanut butter now and then if it's clearly not hurting him to have little. You don't get sick from eating a little ice cream, right? Why would it be bad if he were to have a little now and again, too? Everything in moderation."

So, yeah, try bringing up his own issues with food now! He clearly knew what he was talking about with that, right? And he honestly hadn't intended to come around to the point like that, but was weirdly impressed with himself that it just kind of...did.