So Ive seen alot of fan stuf that says Bakugo would be the type of person to eat like super spicy food and not flinch. Dont know if thats canon or not but just to add to that...
What if Izuku got used to really spicy food as well when he was copying Bakugo at a young age.
He looks like a sweets person but really sweets would make him nauseas cause they smell like Bakugo (nitroglycerin smells like caramel) so instead he gets spicy.
Or
I can also see people believing the whole bakugo spice thing and bringing him spicy lunches or so.ething and him actually liking sweets so he and Izuku will subtly swap lunches since they learned Izuku can take the spice/ likes it and Bakugo never wanted to look weak for havingva sweet tooth. They have it down to an art form by high school so no one notices until someone goes to steal some of the broccoli boys lunch and like keels over in pain dying on the floor.