Apologies if this has been discussed at length on the list and I  
missed it:

My husband just got a blood test back that said he was allergic to the  
strangest things (eggs, pineapple, pinto beans) -- things he really  
likes and never would've expected!  I'm considering having it done too  
after I've been on pemmican for a while.  Just out of curiosity.

My question to the group is:  why do people have food allergies?  One  
would think that if a one size fits all "pemmican and water" diet  
cured all ills that everyone's allergies would be the same.  But they  
wouldn't bother doing testing if everyone was allergic to all the same  
thing, would they?  What's the underlying mechanism that determines  
what foods we are or aren't allergic to?  Blood type?  Genes?  Ideas?

TIA
-Belinda