Rich, I am not a pro at senior dogs, but many brands do contain some glucosamine and chondroitin, just not in high enough amounts. Supplementing should be better is what I’ve read. But other higher-protein, grain-free, and budget-friendly options are the Victor Grain-free line (the green one also has extra Glu-Chon) and the Earthborn Holistic Grain-free line. Both are for all life stages if I am not mistaken, and are affordable, quality products. I have personally fed and still have in my stash bags of both, and I can report great success with my “youngin”, almost 2-year old pup. As others have mentioned, rotation is best, so if you can get your new friend on Fromm Grain-Free, Victor Grain-Free, and Earthborn Holistic Grain-Free, you can alternate the flavors between the brands and see what she (or he) does well on.
