Royal Canin Breed Health Nutrition Jack Russell Terrier Adult Dry Dog Food, 10-lb bag; Royal Canin Jack Russell Terrier Adult Dry Dog Food is tailor-made nutrition created just for your Jack or Parson Russell Terrier pure breed. This exclusive breed-specific diet is uniquely formulated for your small dog, with the specific nutrients to help him thrive. The specialized kibble is designed for your small breed’s strong, rectangular jaws, making it easy for him to pick up and chew. Optimal protein content and antioxidants support vitality and sustain muscle mass. Essential nutrients like B vitamins and amino acids reinforce the skin barrier with EPA and DHA from fish oil for skin support and coat care. And to help with your little dog’s dental care, this Jack Russell dog food has a unique kibble texture, shape, and size to help reduce tartar buildup for healthy gums and teeth by encouraging the dog to chew.