Older dogs and osteoarthritis: mobility, comfort and the place of CBD

A clinical trial conducted by Cornell University associated a dose of 2 mg of CBD per kilo, administered twice a day, with an improvement in mobility in dogs suffering from osteoarthritis, according to Gamble et al. (2018), published in Frontiers in Veterinary Science. It is the most frequently cited veterinary study on this subject.

That study concerns a precise protocol, a dose, a frequency and a population of dogs defined within an experimental setting. It does not constitute a general prescription applicable to all older dogs, nor a guarantee of individual results.

These results remain a starting point for reflection, not a basis for self-medication. Every dog has a different stage of osteoarthritis, weight and state of health, which is why veterinary advice is warranted before any dosing decision.

Canine osteoarthritis requires a veterinary diagnosis, CBD replacing no treatment, in line with usual veterinary recommendations. Signs of joint discomfort — stiffness on getting up, reluctance to jump, intermittent lameness — may also point to other conditions that a clinical examination can rule out.

A senior dog showing these signs deserves a full assessment before any intervention, whether a conventional treatment or a supplement. The vet assesses the stage of the osteoarthritis, adapts the support and monitors any interactions with other ongoing treatments.

No veterinary marketing authorisation (AMM) exists for CBD in France, according to the ANMV. CBD products for dogs available on the market therefore have no medicine status and have not been assessed by that authority against the usual pharmaceutical criteria.

This absence of a framework does not mean that use is prohibited, but it does call for heightened vigilance regarding the origin, traceability and composition of the products chosen. An independent certificate of analysis remains a useful quality marker, whatever the product under consideration.

Beyond any question of supplements, an older dog's mobility is also supported by simple day-to-day adjustments. A healthy weight reduces the load on the joints, a point that veterinary follow-up of dogs with osteoarthritis consistently confirms.

Shorter, more frequent walks, suitable bedding and non-slip surfaces at home limit painful strain. Our article on the restless dog at night addresses, in a different context, the same logic of careful observation of the animal's behaviour before any decision.

Can CBD cure a dog's osteoarthritis?

No, no therapeutic claim of that kind is authorised in France. Canine osteoarthritis is managed through veterinary follow-up, CBD being neither a medicine nor a recognised treatment.

What dose of CBD did the Cornell study test?

The trial by Gamble et al. (2018) tested 2 mg of CBD per kilo, administered twice a day, in dogs with osteoarthritis. That experimental protocol does not constitute a universal dosage to be applied without veterinary advice.

Can a dog with osteoarthritis stop its treatment in favour of CBD?

No, no prescribed veterinary treatment should be interrupted in favour of CBD without the vet's agreement. CBD replaces no treatment for canine osteoarthritis.

How can you tell whether a dog has osteoarthritis?

Only a veterinary examination, possibly supplemented by imaging, confirms a diagnosis of osteoarthritis. Stiffness on getting up, reluctance to jump or intermittent lameness are signs that warrant a consultation.