Hi Lisa B,
InkedMarie and Pitlove gave you some good suggestions. I’m curious, what food is your dog currently eating? You don’t want to switch to something that’s too radically different if she’s been eating the same food all her life.
I have had and currently have some “senior” dogs (large breed)as well as adult large breed, but I don’t feed any senior foods ever. The only reason people might consider a senior food is if the dog is overweight, and that’s not really a good reason either. It sounds like your dog wouldn’t need it. Try to avoid the potatoes in any of the food, as InkedMarie said, as they worsen arthritis by causing inflamation. Fish oil is an anti-inflamatory, and is also helpful with arthritis, but add it slowly. I use human grade fish oil pills as they tend to be more pure than traditional dog fish oils.
Some other things you might consider feeding is some fresh and/or wet food. This would help keep your dog more hydrated and might encourage eating since they often lose their sense of smell as they age. Again, a word of caution: only change or add one thing at a time, including supplements. They can change stool consistency and you won’t know the cause. Good luck!
