Protein source
Ingredient guideUnclear animal protein source
Animal protein
CHICKEN BY-PRODUCT MEAL (SOURCE OF GLUCOSAMINE AND CHONDROITIN SULFATE) (#2), MEAT AND BONE MEAL (#13)
Plant protein
CORN GLUTEN MEAL (#4), SOYBEAN MEAL (#6), DRIED PEAS (#16)
Animal-based does not always mean clearly sourced.
Unspecified animal protein is read conservatively.