Don't feed processed foods like kibble or canned foods, and if you do, make sure they don't contain ingredients like chicken byproduct meal, chicken meal or other meat meals, animal digest, and bone meal. (dogsnaturallymagazine.com)
Feathers and eggs are sometimes even part of chicken byproduct meal. (dogcare.dailypuppy.com)
It does come with chicken byproduct meal but this should not really be a concern since Purina can be relied upon to utilize only the safest internal organs of chicken to include in the byproduct meal. (mypetneedsthat.com)