It’s not like I eat Burger King very often but if I’m on a road trip or something it’s one of the places I go to. Sadly, they fry their fish with their pork products. Here is the daleel: Burger King Site. If you scroll down past the ingredients to the section entitled “Fried Products” you’ll find the info.
Sorry to ruin it for you BK fans but I had to pass the knowledge on.