i dont raw feed but i will tag some that do and maybe they can help. @karenben @GatorRay @savemejeebus @MatildasMommy . i believe one of our raw feeders had a problem with pork or some meat with one of her dogs so yes i believe they can be allergic to certain raw meats. maybe just do one protein like chicken and then add in more as you can to see if one is causing the problem. sorry i cant help more but someone will be along soon to help. if i remember more raw feeders ill come back and tag them. good luck.