Joint Support for Senior Dogs: A Practical New Zealand Guide

Seeing a much-loved dog slow down can be difficult, but reduced mobility should not automatically be dismissed as “just old age”. Changes in movement, behaviour or enthusiasm may indicate discomfort or an underlying health condition that deserves attention.

Supporting a senior dog’s joints usually involves more than choosing a supplement. Weight management, appropriate exercise, home modifications, veterinary care and consistent nutritional support can all contribute to a practical mobility plan.

This guide explains what New Zealand dog owners can look for and how to support an older dog’s movement safely.

When is a dog considered senior?

There is no single age at which every dog becomes senior. Large and giant breeds generally reach their senior years earlier than smaller breeds, while genetics, previous injuries, activity and overall health also affect ageing.

The AAHA Senior Care Guidelines describe the senior life stage as approximately the final quarter of a dog’s expected lifespan. The guidelines also emphasise an important point: old age itself is not a disease.

Rather than relying only on your dog’s birthday, pay attention to changes in mobility, muscle condition, behaviour and daily routines.

Signs your senior dog may be experiencing mobility changes

Older dogs do not always communicate discomfort by crying or limping. Changes can be subtle and may develop gradually.

Look for:

• Stiffness after sleeping or resting
• Taking longer to stand up
• Reluctance to use stairs
• Hesitation before jumping into the car
• Shorter or slower walks
• Falling behind when previously keen to lead
• Difficulty settling into a comfortable position
• Slipping more frequently on smooth floors
• Changes in gait or posture
• Reduced interest in play
• Licking around a joint
• Loss of muscle around the hindquarters
• Irritability when touched or moved
• Changes in toileting posture
• Avoiding activities your dog previously enjoyed

Record short videos of your dog walking, rising and using steps. Videos taken at home can help your veterinarian assess changes that may not be obvious during a clinic visit.

Seek prompt veterinary advice if your dog develops sudden lameness, cannot bear weight, cries in pain, has joint swelling, drags a limb or experiences a rapid decline.

Start with a veterinary assessment

Mobility changes can have many causes, including joint disease, injury, spinal or neurological conditions, muscle loss, paw or nail problems and other illnesses.

A veterinary examination may assess:

• Gait and posture
• Joint movement
• Muscle condition
• Body weight and body condition
• Spine, limbs, paws and nails
• Current medicines and supplements
• Whether further testing or imaging is appropriate

Bring a complete list of everything your dog receives, including foods, treats, supplements, oils, herbal products and medicines. This helps your veterinarian identify unnecessary duplication or possible interactions.

Never give a dog human pain medication unless a veterinarian has specifically prescribed it.

1. Maintain an appropriate body condition

Body weight has a direct effect on how much load a dog’s joints must carry. However, senior-dog nutrition is not simply about making every older dog lose weight.

Some senior dogs carry excess body fat, while others lose important muscle mass as they age. Both body condition and muscle condition should be assessed.

The WSAVA Global Nutrition Guidelines recommend incorporating nutritional assessment into routine veterinary care. Ask your veterinarian to show you how to monitor your dog’s body and muscle condition at home.

Avoid aggressive calorie restriction without professional guidance. A senior dog still needs a complete, balanced diet containing appropriate energy and high-quality nutrients.

2. Choose consistent, appropriate exercise

Movement helps senior dogs maintain muscle, balance and confidence. The appropriate amount depends on the individual dog and any diagnosed condition.

For many older dogs, shorter and more frequent walks are easier to manage than occasional long outings. A steady routine may include:

• Controlled lead walks
• Gentle exploration and sniffing
• Gradual warm-ups
• Appropriate strength or balance exercises
• Hydrotherapy or rehabilitation exercises when recommended
• Rest and recovery following activity

Avoid sudden increases in distance or intensity. Repetitive high-impact activity, sharp turns, slippery surfaces and uncontrolled jumping may be unsuitable for some dogs.

Dogs with diagnosed joint, spinal or neurological conditions should have an exercise plan created with their veterinarian or qualified canine rehabilitation professional.

3. Make the home easier to navigate

Simple environmental changes can help an older dog move with greater confidence.

Consider:

• Rugs, carpet runners or non-slip mats on smooth floors
• A supportive bed in an easily accessible location
• Ramps for vehicles or frequently used steps
• Gates around unsafe stairs or pools
• Keeping food and water within easy reach
• Keeping nails appropriately trimmed
• A well-fitted support harness when recommended
• Moving your dog’s bed closer to the door used for toileting
• Providing warm, dry resting areas

The AAHA senior-care guidance includes ramps, improved footing, harnesses and accessible bedding among the environmental modifications that may help older pets.

4. Consider nutritional joint support

Joint supplements are not medicines and should not replace diagnosis or prescribed treatment. They can, however, form one part of a broader nutritional-support plan.

Common dog joint supplement ingredients include:

• Glucosamine
• Chondroitin sulphate
• Undenatured type II collagen
• Hyaluronic acid
• Boswellia
• Omega fatty acids
• Vitamin C
• Manganese

These ingredients are not interchangeable. If you want to understand their different roles, read our guide to glucosamine, chondroitin, collagen and hyaluronic acid for dogs.

Research into canine joint supplements varies considerably. A 2022 systematic review and meta-analysis found differing levels of evidence across supplement categories, with stronger pain-management evidence for omega-3-enriched diets or supplements than for several other commonly marketed ingredients.

This is why joint supplements should not be promoted as guaranteed pain relief or a cure for arthritis. Look for transparent labels and realistic nutritional-support claims.

5. Choose a supplement your dog will take consistently

A product only becomes part of the routine if it can be fed accurately and consistently.

When comparing senior dog joint supplements, check:

• The full ingredient list
• Amounts supplied per daily serving
• Serving required for your dog’s weight
• Ingredient sources and potential sensitivities
• Whether the format suits your dog
• Cost per day rather than container price
• Storage instructions
• Whether ingredients overlap with another product

For more help comparing powders, liquids, oils and chews, read How to Choose a Dog Joint Supplement in NZ.

Cortaflex joint support for senior dogs

Cortaflex Senior Joint Chews for Dogs NZ

Cortaflex Senior Joint Chews for Dogs NZ combine glucosamine hydrochloride, chondroitin sulphate, hyaluronic acid and undenatured type II collagen in a soft-chew format.

The formula also contains Boswellia extract, vitamin C and manganese. The chews may suit older dogs whose owners want a convenient daily format that can be given as a treat.

The glucosamine is sourced from crustaceans, chondroitin is porcine-derived and the type II collagen is avian-derived. Check the complete composition if your dog has known food sensitivities.

Cortaflex Working Dog Jointcare Powder

Despite its name, Cortaflex Working Dog Jointcare Powder can also provide nutritional joint support for dogs of advancing years.

It contains the same four core joint ingredients—glucosamine, chondroitin, hyaluronic acid and undenatured type II collagen—along with Boswellia, vitamin C and manganese.

The powder may suit dogs that happily eat supplements mixed into food or households that prefer a measured powder rather than chews.

Always follow the feeding directions for your dog’s weight. Do not exceed the recommended amount unless advised by your veterinarian.

You can compare the full Cortaflex dog joint supplement range before deciding which format best suits your dog.

6. Track your dog’s mobility over time

Gradual changes can be difficult to recognise when you see your dog every day. Create a simple monthly record covering:

• Ease of rising
• Willingness to walk
• Walking distance and pace
• Ability to use stairs
• Ability to enter the car
• Slipping or stumbling
• Interest in play
• Body weight
• Muscle condition
• Good days and difficult days

Take short videos from the front, side and behind while your dog walks at a comfortable pace. Using the same location and surface each time makes comparisons easier.

Share significant changes with your veterinarian rather than simply increasing supplements or reducing all activity.

Frequently asked questions

Should every senior dog take a joint supplement?

Not necessarily. Senior dogs have different diets, health conditions and activity levels. A supplement may be considered as part of a broader support plan, but it should be selected for the individual dog.

Can a joint supplement replace pain medication?

No. Nutritional supplements are not substitutes for prescribed pain relief or veterinary treatment. If your dog appears uncomfortable, arrange a veterinary assessment.

Can senior dogs still exercise?

In most cases, appropriate movement remains important. The type, intensity and duration should suit the dog’s health and physical ability. Dogs with diagnosed conditions may need a tailored rehabilitation or exercise programme.

How quickly do dog joint supplements work?

Joint supplements are intended for consistent nutritional support, not immediate pain relief. Follow the label directions and discuss your expectations with your veterinarian. Sudden or worsening mobility problems should never be managed by waiting for a supplement to work.

Can I use more than one joint supplement?

Combining products can duplicate ingredients and increase the total amounts being fed. Compare the complete labels and ask your veterinarian before combining joint powders, chews, oils, liquids or herbal products.

Are soft chews suitable for dogs with food sensitivities?

That depends on the product and the individual dog. Check every ingredient and source. Cortaflex Senior Joint Chews contain ingredients derived from crustaceans, porcine sources, avian sources and salmon oil.

Helping your senior dog keep moving

Good senior-dog joint support is not based on one ingredient or product. It combines early recognition, veterinary assessment, appropriate body and muscle condition, regular suitable movement, a safer home environment and carefully selected nutritional support.

Small adjustments made early can make daily life easier to navigate. Pay attention to what your dog shows you, keep a record of changes and seek professional advice whenever mobility or comfort deteriorates.

Updated September 2026.