Senior Dog Joint Supplements 2026 — Glucosamine vs Green Lipped Mussel vs Omega-3
Why joint supplements matter — and which actually do something Roughly 1 in 5 dogs over the age of seven shows clinical signs of osteoarthritis (OA), and by age 12 the proportion is closer to 4 in 5 (American Veterinary Medical Association data). The supplement aisle responds with a wall of “joint formulas” promising mobility, comfort, and a return-to-puppy bounce. The marketing is louder than the evidence. The three ingredient categories with the strongest peer-reviewed support in 2026 are glucosamine/chondroitin, green lipped mussel (GLM), and omega-3 fatty acids (EPA/DHA). Many products combine all three. This guide walks through what each does, what it doesn’t do, and how to dose for a senior dog. ...