Pet supplements / best of
Best joint supplement for cats.
Cat joint supplements, ranked on our rubric. Feline arthritis is common and easy to miss, but the evidence for glucosamine and chondroitin is contested, so dose transparency and value matter most.
Feline arthritis is common and underdiagnosed: cats are experts at hiding pain, so stiffness, reluctance to jump, or a change in grooming can be the only signs. That makes joint support a reasonable conversation to have with your veterinarian. It also makes cats a target for supplement marketing that runs ahead of the evidence.
The honest read on the active ingredients: glucosamine and chondroitin, the headline of most cat joint products, have contested evidence, and a 2022 meta-analysis recommended against them for osteoarthritis pain. Green-lipped mussel and, especially, omega-3 fish oil carry somewhat stronger support. Because the marquee actives are weak, our rubric leans on what a label can actually prove, the disclosed dose, and on price, rather than crediting the claim.
This list ranks the cat joint supplements in our catalog by full composite. There are only a few, because most joint products are dog-first; read each scorecard for the actual glucosamine, chondroitin, or green-lipped-mussel dose.
4 supplements
Ranked by PetScored composite.
- Nutramax Dasuquin for Cats Sprinkle Capsules
A fully-disclosed glucosamine, chondroitin, and ASU joint capsule for cats at the studied forms and a weight-scaled dose; the active's osteoarthritis evidence is contested and Nutramax is not an NASC member, so it lands Good rather than Strong.
CatsJoint7.8Good - VetriScience GlycoFlex Plus for Cats
A fully disclosed, per-ingredient cat joint chew from a NASC, own-facility maker, with green-lipped mussel alongside glucosamine and chondroitin and a hedged support claim; the catch is the same as every glucosamine product, the evidence for the active is weak and contested, so it lands Good on execution rather than Strong on proof.
CatsJointNASC seal7.8Good - Nutramax Cosequin for Cats Sprinkle Capsules
A transparent, well-priced feline joint capsule from a batch-testing owner-operator, held to Good by the contested glucosamine and chondroitin evidence base.
CatsJoint7.7Good - Pet Naturals Hip + Joint for Dogs and Cats
A fully disclosed dog-and-cat joint chew from an NASC founding member that owns its Vermont plant, with glucosamine, chondroitin, and green-lipped mussel and a hedged support claim, and it is very cheap per day; the catch is the familiar one, the glucosamine evidence is weak and the per-serving dose is modest, so it lands Good on execution rather than Strong on proof.
Dogs & catsJointNASC seal7.3Mixed
FAQ
Frequently asked
Do joint supplements work for cats?
The evidence is weaker than the marketing. Glucosamine and chondroitin, the most common cat joint actives, have contested support, and a 2022 meta-analysis found little effect for osteoarthritis pain; green-lipped mussel and omega-3 fish oil carry somewhat better evidence. Discuss a diagnosed-arthritis plan with your veterinarian rather than relying on a supplement alone.
How do I know if my cat has arthritis?
Cats hide pain, so the signs are subtle: less jumping, hesitation on stairs, stiffness after rest, reduced grooming, or a change in litter-box habits. Arthritis is common in older cats and easy to miss. A veterinarian can diagnose it; this list ranks supplements, it does not diagnose your cat.
Is glucosamine safe for cats?
Glucosamine and chondroitin are generally considered well tolerated in cats, but well tolerated is not the same as proven to work, and the evidence for benefit is contested. Confirm any supplement with your veterinarian, especially for a cat with other health conditions.
This ranking is our opinion under a published rubric, not veterinary advice. Affiliate links on individual scorecards never affect the score. See the affiliate disclosure and medical disclaimer.