Lemina wrote:^ I didn't know anyone was allergic to soy, It's not an impossibility, but I just didn't expect it.
I prefer homemade burgers. You get 'em exactly the way you want 'em.
Yes, it's very possible. Certain people have digestive issues with certain types of protein. It's called Coeliac Disease. Some info:
http://en.wikipedia.org/wiki/Coeliac_disease
I was eating a lot of soy in my diet a few years ago, and visited my doctor a few times because of having digestive issues. He thought I might have had Coeliac disease, but my blood test came back negative. After this, I cut out ALL of the soy in my diet and I didn't have any issues after that. The same thing happened to my sister too. She had to cut out soy from her diet as well.
It's a shame too, there are some really great health foods with soy in them.