Hi shelties mom –
I do believe that dogs should be fed a diet rich in joint maintaining compounds (glucosamine, chondroitin, MSM, etc.) for a lifetime in order to promote optimum joint health. A dog’s natural ancestral diet which is rich in bones, cartilage and sinew, would naturally contain high levels of these joint health promoting substances. For those feeding a raw diet that includes bones/cartilage, it generally isn’t necessary to supplement with joint supplements unless the dog has an orthopedic condition (i.e. hip dysplasia) or until the dog reaches its senior years. For dogs not eating a species-appropriate diet I feel it’s a good idea to supplement the diet with whole foods naturally rich in joint health compounds (think fresh or dried trachea chews, gullet, poultry feet, etc.) or give a low dose of a joint support supplement for maintenance (the dosage can be increased as the dog ages or begins to show symptoms of arthritis). Some whole food supplements beneficial for joint health would be sea cucumber, shark cartilage or green lipped mussel (generally come in capsules or powder). A standard glucosamine/chondroitin/MSM supplement will also suffice. If a dog is showing signs of pain or inflammation it can also be beneficial to combine a joint maintenance supplement with a natural anti-inflammatory such as boswellia, yucca, turmeric, bromelain, tart cherry, etc.
