As toy breeds age, their health needs can become more complex. That's why NATURAL CHOICE Toy Breed Senior Dog Food features our SENIOR SUPPORT SYSTEM Formula. It's a unique blend of natural protein, antioxidants, vitamins, minerals and amino acids designed to support senior dogs' immune systems and give them the energy they need. Our dry dog food also is infused with an omega-6 fatty acid (linoleic acid), zinc and B vitamins to help with skin sensitivity and to give toy breed dogs a healthy coat. Plus, real chicken is our #1 ingredient, so even the most finicky toy breed dogs will enjoy the premium taste.