Worried that your dog or cat is allergic to something in their raw meat diet? The best approach is to feed them one type of meat for a short time. That means no supplements or cookies or veggies. After a few days begin to add a second variety of meat back into the diet. Continue with the two meats and see what happens.
Watch for an allergic reaction each time you add something new to their diet. It may even be helpful to keep a food log of what meats, cookies (and their ingredients) and supplements you are introducing back into their diet.
If you can’t figure out what is making your dog or cat allergic – start to look at your environment. Dust? Material? Shampoo? Fleas? Vaccination? It may not always be their diet.