The red meat allergy is called Alpha Gel Syndrome. It is not fun, but it is also not usually fatal. There have been cases of anaphylactic reaction, but generally the reaction to red meat is a more typical allergic reaction i.e. itching, hives, rash, GI issues etc. I know two guys that have had it and both recovered. Each case required 2- 2.5 years to fully get over it.