Protein source
Ingredient guideUnclear animal protein source
Animal protein
Chicken (#1), Chicken By-Product Meal (source of Glucosamine and Chondroitin Sulfate) (#3), Dried Egg Product (#11)
Plant protein
Soybean Meal (#7), Corn Gluten Meal (#9)
Animal-based does not always mean clearly sourced.
Unspecified animal protein is read conservatively.