with all teh piza houses , buger joints and curry houses and not to mention chineese and italian resturants ime pretty sure we are aware of different food cultures
we even used to have a guy who rummaged through bins for scrap food on church street although i think he was pretty much alone in that food culture
all you need to know about foreign food is that if eating french make sure its not part of a frog , horse or snails and if eating cantoneese make sure it isnt cat or dog