Don't let them jump off the furniture!

Royal Canin Yorkshire Terrier Breed specific food :

 The addition of chondroitin sulfate, a nutrient derived from cartilage, helps ensure the elasticity of the cartilage in the joints. Glucosamine, another nutrient of natural origin, plays a supplementary role in the synthesis of new cartilage. The combined action of these two nutrients helps to slow cartilage degeneration significantly