As your dog gets older, it becomes increasingly important to maintain a diet that he can benefit from. You don't want to give him food that you would give to a puppy just like you donÆt want to give a puppy food that you would give to a senior dog. That's why there's Iams Proactive Health Senior Plus 9+ Large Breed Dry Dog Food. With chicken and eggs as its main protein source, this dry food is a heavy-duty multi-tasker. It's formulated to build up your dog's immune system, aid in the digestive process and strengthen strong, firm muscles. The presence of L-Carnitine is there to help burn fat in order to maintain a healthy body weight. Iams Proactive Health Senior Plus 9+ Large Breed Dry Dog Food is just what your senior dog needs to aid him in his golden years!