I took my daughters' German Sheperd to our Vet last June because I noticed she was not as eager to go for those walks when she visited us.

She was given Synovi G3 Soft Chews~ I had to adjust the dosage to her weight, (6 per day to start with) then, after maintence, 2 each day.


These suppliments are expensive, but I noted a difference within the following months.
I'd be sure to have each dog seen by your Vet~

I found some great information on a Thread created by Pnance~ but, I don't know how to cross post it