The problem: arthritis in older dogs

About 20% of adult dogs and 70-80% of dogs over 8 have some degree of osteoarthritis. Large and giant breeds are most affected, but small dogs with luxating patella or hip dysplasia suffer too.

Supplements with real evidence

1. Omega-3 (EPA + DHA) — strongest evidence

Wild fish oil (sardine, salmon, anchovy) or krill. Proven reduction of joint inflammation.

2. Glucosamine + chondroitin — mixed evidence

The classics. Variable results across studies — some dogs respond well, others not. Worth a 6-8 week trial.

3. Green-lipped mussel

New Zealand mussel — combines natural glycosaminoglycans with omega-3. Solid evidence.

4. UC-II (undenatured collagen type II)

Has the best collagen-supplement evidence. Pricier but effective.

5. Turmeric (curcumin)

Growing evidence as a natural anti-inflammatory. Better bioavailability with piperine or lecithin.

What doesn't work

Prescription options when supplements aren't enough

Most effective approach: combination

  1. Maintain ideal weight — every kilo off the joints helps.
  2. Omega-3 at correct dose.
  3. Glucosamine + chondroitin 6-8 week trial.
  4. Adapted exercise: many short walks beat fewer long ones.
  5. Prescription NSAID if pain persists, under vet supervision.

How CanAI helps

Log lameness, stiffness and pain in CanAI with photo/video — patterns visible across weeks. Ask the AI chat about supplement choices for your dog's breed, weight and arthritis stage. UK insurance with chronic cover matters for seniors — Librela + NSAIDs + checks can hit £80-150/month long-term.