How common is arthritis in cats?

Very common. Studies show approximately 90% of cats over 12 years old and 61% of cats over 6 have radiographic evidence of arthritis (degenerative joint disease). It is one of the most underdiagnosed conditions in cats because they hide pain effectively.

What are the signs of arthritis in cats?

Cats rarely limp or cry from arthritis pain. Instead, look for: no longer jumping to favourite high spots, matted fur on the back (can't groom), toileting outside the litter tray, sleeping more, irritability when handled, and reduced playfulness. These are absences of normal behaviour rather than obvious pain signs.

Can you give green-lipped mussel to cats?

Yes. Green-lipped mussel is safe and effective for cats with arthritis. Joint Rejuvenate for Cats is specifically formulated for feline use at a dose of 20-60mg per kilogram of body weight. It provides omega-3 anti-inflammatory action, glucosamine and chondroitin for cartilage support, and hyaluronic acid for joint lubrication — all from a single natural source.

What is the best joint supplement for cats in Australia?

Green-lipped mussel supplements are considered the gold standard for feline joint supplementation because they provide multiple joint-supporting compounds (omega-3s, glucosamine, chondroitin, hyaluronic acid) from a single whole-food source. Joint Rejuvenate for Cats is available in 100g, 200g, and 500g sizes and can be mixed into wet food.

Cat Arthritis Treatment in Australia

90% of cats over 12 have arthritis — but most owners don't know. Cats hide pain so well that arthritis is the most underdiagnosed condition in feline medicine.

90%

of cats over 12 have arthritis

61%

of cats over 6 show joint changes

<5%

are correctly diagnosed

Common Myths About Cat Arthritis

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MYTH: “Cats don't get arthritis”

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FACT: Studies show 90% of cats over 12 and 61% of cats over 6 have radiographic evidence of arthritis. It's actually more common in cats than dogs — it's just dramatically underdiagnosed.

Source: Hardie et al. 2002, Slingerland et al. 2011

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MYTH: “My cat is just slowing down because of age”

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FACT: Age-related slowing is often arthritis being normalised. A healthy 12-year-old cat should still be able to jump on furniture and groom their entire body. If they've stopped, pain is likely the reason.

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MYTH: “Cats will cry or limp when they're in pain”

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FACT: Cats are hardwired to hide pain — in the wild, showing weakness makes them a target. Instead of limping or crying, they quietly stop doing things that hurt. You'll notice absences, not complaints.

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MYTH: “There's nothing you can do for a cat with arthritis”

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FACT: There are now multiple effective treatments including joint supplements, pain medication, environmental modifications, and weight management. Cats respond very well to multimodal treatment.

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MYTH: “Joint supplements made for dogs work for cats too”

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FACT: While the active ingredients are the same, cats require careful dosing. Many dog supplements contain additives (like xylitol or certain flavourings) that are toxic to cats. Always use a product confirmed safe for cats.

The Subtle Signs of Cat Arthritis

Cats don't limp or cry like dogs do. Instead, they quietly stop doing things that cause pain. Look for these absences.

Mobility Changes

●No longer jumping onto beds, couches, or window sills
●Using intermediate steps (chair → bench → counter) instead of one jump
●Hesitating before jumping down from heights
●Walking stiffly, especially after sleeping
●Reluctance to use stairs
●Difficulty getting in and out of the litter tray

Grooming Changes

●Matted or scruffy fur, especially on the back and hindquarters
●Over-grooming a specific joint (licking one area excessively)
●Long or unkempt claws (not using scratching post)
●Dandruff or oily coat from reduced self-grooming

Behaviour Changes

●Sleeping more than usual
●Hiding or withdrawing from family interaction
●Irritability when picked up or handled
●Toileting outside the litter tray (pain getting in)
●Decreased interest in play
●Less purring or vocalisation

Activity Changes

●No longer hunting or bringing home prey
●Staying on one level of the house
●Not greeting you at the door
●Reduced curiosity about new objects or visitors
●Spending less time outdoors

Rule of thumb: If your cat over 8 years old has stopped doing anything they used to do regularly, consider arthritis as a possible cause and discuss with your vet.

Treatment Options for Cats

Joint Supplements (Green-Lipped Mussel)

First-Line, Ongoing

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Joint Rejuvenate for Cats contains omega-3 fatty acids, glucosamine, chondroitin, and hyaluronic acid. Dose at 20-60mg per kg (upper range recommended for cats). Mix the powder into wet food — most cats accept the marine flavour readily. Safe for long-term use with no side effects.

Pain Medication (Solensia / Meloxicam)

Vet Prescription

Solensia (frunevetmab) is a monthly injection specifically designed for feline osteoarthritis pain — a game-changer for cat arthritis treatment. Meloxicam can be used short-term but requires careful monitoring in cats due to kidney sensitivity. Both can be combined with Joint Rejuvenate.

Environmental Modifications

Immediate, Free

Steps up to favourite perches, low-sided litter trays, raised food bowls, heated beds, non-slip mats, and ramps. These simple changes can make an enormous difference to a cat's daily comfort.

Weight Management

Ongoing

Overweight cats place significantly more stress on arthritic joints. A weight loss of just 6-8% body weight can produce measurable improvement in mobility. Your vet can recommend an appropriate calorie target.

Help Your Cat Live More Comfortably

Joint Rejuvenate for Cats is available from $60.50. Free veterinary consultation with Dr John Stewart.

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