Critically appraised topic on adverse food reactions of companion animals: common food allergen sources in dogs and cats > "most likely food allergens contributing to canine CAFRs are beef, dairy products, chicken, and wheat. The most common food allergens in cats are beef, fish and chicken." User HealthyPetsAndPlanet, in the Share photos, research, news, or thoughts about vegan pets. subreddit, 17 Oct 2017