We went from grinding up glucosamine with a mortar and pestle a couple of years back for our now 8 year old Jack Russell to getting these vitamin and joint supplements, mostly through Vine but we have re-ordered a couple of products by this point. We're also feeding them to our year and a half old Huskie, because why not?
Its hard to pin down one specific product since we've tried several, but I can say Oliver, the Jack, is doing so much better with his joint issues than when we started giving him supplements. He shows little sign of stiffness and pain now whereas before sometimes it seemed like he barely had control of his rear legs. So, some combination is certainly working, and I wouldn't hesitate to recommend these supplements to anyone with a pooch who maybe has survived the stresses of growing up along side children but is suffering from the wear and tear of the rough housing that goes along with that.
These chews are not their favorites. The first few days they ate them right up, then they started getting a little snooty about taking them. We solved this by alternating these chews every other day with another that they seem to like the flavor of a little bit more. The upside to these chews is that they're more affordable than many alternatives, especially the aforementioned alternating chews we're currently using. They have similar nutritional content though.