Chicken Cartilage

Poultry plants remove breast fillets and leave cartilage around the keel. Separating that tissue creates a saleable ingredient from a processing leftover. It is ground for use in food; suppliers also offer a dried powder.^5,7,10

1. 01 // Source Chicken carcasses Keel cartilage remains on the breastbone area after workers remove the breast fillets.
2. 02 // Process Cartilage separated Workers cut the cartilage from the carcass as a distinct poultry processing stream.
3. 03 // Process Washed and ground In a published preparation, separated cartilage was washed, shredded and kept frozen before further use.
4. 04 // Output Cartilage ingredient Ground cartilage or a supplier's dried powder is available for mixing into animal food.

1. 01

   Supplies cartilage compounds

   Cartilage contributes collagen. A supplier also identifies glucosamine and chondroitin in its dried mix, but an ingredient name gives no amount delivered by the finished food.^5,7

2. 02

   Adds animal protein

   The tested keel cartilage was mostly protein on a dry basis. Its protein contribution to a recipe still depends on how much cartilage the maker adds.^5,8

3. 03

   Sells a processing leftover

   Breast filleting leaves keel cartilage behind. Separating and selling it gives poultry processors a use for that tissue; an industry report classifies chicken cartilage as an upcycled animal ingredient.^5,10

4. 04

   Supports a joint message

   The ingredient gives makers a real cartilage tissue to name on the bag. Studies of measured joint supplements cannot tell owners what an unspecified amount in kibble will do.^1,2,7

How much One published dog food formula lists chicken cartilage at 1%; that example does not define a usual or effective amount.⁸

1. Brands say

   Chicken cartilage supplies collagen and cartilage compounds

   Evidence

   1. Strong
   2. Some
   3. Thin
   4. None

   A studied keel cartilage sample was 90.3% protein on a dry basis, and about 35.7% of that protein was collagen. A supplier identifies glucosamine and chondroitin in its powder. Neither source gives a therapeutic dose in finished kibble.^5,7

2. Brands say

   Chicken cartilage relieves arthritis pain

   Outruns the evidence

   Evidence

   1. Strong
   2. Some
   3. Thin
   4. None

   None of the cited trials tested chicken cartilage in food. A 75-dog trial found measured glucosamine and chondroitin gave no gait benefit, and a 13-dog industry trial that helped mobility used UC-II plus Boswellia, not whole cartilage. Neither supports the claim.^1,2,3

3. Brands say

   Chicken cartilage rebuilds worn joint cartilage

   Outruns the evidence

   Evidence

   1. Strong
   2. Some
   3. Thin
   4. None

   The 75-dog trial measured gait and clinical scores. The smaller supplement trial assessed mobility and joint-fluid chemistry. Neither measured cartilage regrowth or showed that eating chicken cartilage rebuilds damaged joint tissue.^1,2

4. Critics say

   Chicken cartilage is just filler

   Outruns the evidence

   Evidence

   1. Strong
   2. Some
   3. Thin
   4. None

   A tested keel sample was 90.3% protein on a dry basis, and one published recipe included cartilage at 1%. It is a real tissue ingredient. That small recipe amount does not make it the food's main protein source.^5,8

5. Owners say

   Chicken cartilage works like UC-II

   Outruns the evidence

   Evidence

   1. Strong
   2. Some
   3. Thin
   4. None

   UC-II used in a published trial was derived from chicken sternum and processed at low temperature to preserve native type II collagen. A chicken cartilage listing specifies neither that process nor a measured amount of native collagen.^6,9