If you’ve ever stood in the supplement aisle of a pet supply store and wondered whether any of the glucosamine and chondroitin compounds actually work, this series is for you. Joint supplements for older dogs are a billion-dollar business built on confident marketing label claims. The truth, which is harder to fit on a bottle, sits somewhere between “miracle cure” and “snake oil.”
I’m a scientist by training (with a few aging dogs of my own), and I’ve also spent over a decade in marketing. Instead of relying on marketing claims, I delved into the actual canine research, sifting through published protocols and actual experiments. This series works through the scientific evidence one question at a time, with no hype, no cynicism, and showcasing what the studies do and don’t support. One caveat- this is based on my research summaries and is not veterinary advice. When considering a supplement for your dog specifically, always work with your vet.
Here’s the blog post series. I’ll link each part as it goes live:
Part 1 — Bioavailability: Does it even reach the joint? Before asking whether glucosamine works, you have to ask whether it gets where it’s going. Here’s what the absorption research shows about how much of that administered dose actually reaches a dog’s bloodstream and joints.
Part 2 — Efficacy: Even if it gets there, does it help? Bioavailability is only half the story. Here I work through the clinical trials — placebo-controlled vs. NSAID-controlled — and why they reach such different conclusions about the same supplement. (Coming soon.)
Part 3 — The rest of the shelf: MSM, turmeric, green-lipped mussel, and omega-3s. Glucosamine and chondroitin aren’t the only things in those chews. A look at the evidence — and the gaps — behind the other popular joint ingredients. (Coming soon.)
Part 4 — Reading the label: telling a real dose from a marketing gimmick. The practical capstone: what “veterinary-grade” and “enhanced absorption” actually mean, and how to spot a product worth your money. (Coming soon.)