Food? I’ll never tell my kids.
Guinea pigs can still be found on the menu in Peru.
https://www.tripadvisor.com/ShowTopic-g294316-i819-k12673462-Where_eat_Cuy_Guinea_pig_in_Lima-Lima_Lima_Region.html
Yes, they were domesticated farm animals, and still are, when the Spanish came to the New World...............
https://en.wikipedia.org/wiki/Guinea_pig