K. Grady writes:
I live in eastern NC and have become allergic to soy. At this time Burger King burgers have no soy. I order mine with no bun no CHEESE- it has soy in it- and of course no mayo.
Unfortunately they have announced they are trying a new soy based Burger in Louisiana. But they a e 100% beef at this time ..
Hope this helps a little
The soy is in their buns!!