"Food allergies?" Vegeta hadn't even considered that a thing, let alone an issue. He... supposes it makes sense? It does seem strange to be allergic to food from your own world though, as it would makes sense for alien food to be an issue. "That's a thing?"

"As am I, unless the train is specifically picking locations to make sure that isn't an issue, or the SCAs protect us from issues with food as well as atmosphere and other issues with alien locations." Such as disease or illness from being around unknown pathogens. Now those were scary.