Once they reach 7 years, you can absolutely start them on a joint supplement, including glucosamine, chondroitin, and joint fluid. It takes about 8 weeks to build up enough to see improvement, but you WILL see improvement.

I've just started Marlin on it, his knees are quite bad, beyond surgery. He is also getting Adequan shots, to give him a quick jump start. You get that through your vet.

Gentle pets and hugs to Honey!