I think there's bread in the game? Not 100% sure of that though. I know there's potato chips, but for some reason my brain is claiming to have seen pretzels (which would be made of bread) at the very least.
But you know what I can't recall ever seeing in there at all? Breakfast cereal. And the lack of breakfast cereal - my preferred breakfast food, and what I'm eating right now as I type - is a slap to the face against me, personally! I just know it! Aika has spied on me to find out my specific eating habits, to purposefully ruin my experience with the game by omitting such an important breakfast item!
(No, I'm not serious :P)