Whole chicken feet, dried until brittle.
Watched ingredients get highlighted on every product panel you open.
General reference, not veterinary advice. Dose, breed, and existing conditions change the answer, so talk to your vet before changing what your pet eats. Think we got this wrong? Tell us and we log it publicly.
No product in our database lists this on its panel. That says more about how much we have scored so far than about how common the ingredient is.