Meat allergy? More likely an allergy to either something the meat was prepared with, or something injected for flavor, or hamburger mixed with soy. People allergic to soy can’t even use soybean oil, a very commonly used oil, if I’m not mistaken, though it’s usually the proteins in an allergen that cause reactions.
Former wife was allergic to soy. Had to get special bread because most contained lecithin, which comes from soy. She was also a chocoholic and almost all chocolate contains lecithin. To feed her chocolate cravings meant the expensive chocolate, chocolate without lecithin.
One of my neighbors at our marina is allergic to soy. I never knew soy was used in so many things until she started coming to our dock bbq’s and asking questions about what stuff was prepared with.
*I* have a mild allergy to pork and pork products.
When I was younger it was sometimes so bad that bread or fries cooked with/in lard made me very sick for days.
It took years for us to figure out what was wrong, and we still don’t have any idea why!
You have no idea how much I miss bacon!