Your immune system can theoretically develop an allergic response to just about any protein. Meat allergies are not as rare as you might think ( http://www.food-allergens.de/symposium-3-4/beef/beef-allergens.htm ). I have a family in my pediatric practice in which the mother and one of her sons has a documented (by an allergist) immediate hypersensititivity hypersensitivity (allergic) response to beef. However, they are able to eat pork and poultry.

Your immune system can theoretically develop an allergic response to just about any protein. Meat allergies are not as rare as you might think ( http://www.food-allergens.de/symposium-3-4/beef/beef-allergens.htm ). I have a family in my pediatric practice in which the mother and one of her sons has a documented (by an allergist) immediate hypersensititivity (allergic) response to beef. However, they are able to eat pork and poultry.