Q: At what age do I need to start adding a joint supplement to my dog’s diet? And what are the most important ingredients to look out for in a joint supplement?

A: The right time to introduce a joint supplement depends on your dog’s breed, size, lifestyle, and health history.

• Large and giant breeds (like German Shepherds, Labradors, and Great Danes) are more prone to joint issues such as hip and elbow dysplasia. For them, many vets recommend starting joint support as early as 12–18 months, once they’ve finished growing.
• Smaller breeds often don’t need supplements until they’re middle-aged or senior (around six to eight years old), unless there’s a known joint problem.
• Active dogs (e.g., agility, working, or sporting dogs) may also benefit from earlier support because of the extra wear and tear on their joints.

When choosing a joint supplement, check the label for these better-studied ingredients:

• Glucosamine: Supports cartilage repair and joint lubrication.
• Chondroitin sulphate: Helps slow cartilage breakdown.
• Omega-3 fatty acids (EPA/DHA): From fish oil or krill oil, proven to reduce inflammation.
• Green-lipped mussel: A natural source of omega-3s and other joint-protective compounds.
• MSM (Methylsulphonylmethane): An anti-inflammatory that may reduce pain and stiffness.
• Hyaluronic acid: Supports joint fluid and shock absorption.

NOTE: Not all supplements are created equal. Look for veterinary-formulated brands, ideally those with clinical trials or third-party testing. And remember: supplements work best as part of a holistic joint-care plan, which includes a healthy weight, regular low-impact exercise, and good nutrition.

Finally, don’t forget to always chat with your vet before starting a supplement, especially if your dog already has joint issues or other medical conditions.