椒骄去骨鸭掌山椒味72G | Jiaojiao Boneless Duck Feet with Sansho Flavor 72g

This study suggests that extracted collagen from duck's feet is biocompatible and resembles collagen extracted from porcine which is commercially used.

Similar to chicken feet, duck feet have calcium, phosphorous, omegas, collagen, and glucosamine! They are super chewy because they are mostly bone and cartilage, so the added crunch helps clean your dog's teeth as well as pack a nutrient punch.

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