Canadian Brand. Royal Canin Yorkshire Terrier is for Adult Yorkshire Terriers over 10 months old. The antioxidant complex is formulated to help support health and vitality from adult through aging. High quality protein and Omega 3's help support a strong, glossy and healthy coat. Tailor-made for their tiny jaw, the size and texture of the toast-shaped kibble brushes the teeth and promotes oral health through chewing. Natural flavours and aromas entice their fussy appetite. Royal Canin Yorkshire Terrier provides tailor-made nutrition for an impulsive and brave little dog.