At what age should I consider introducing joint supplements to my canine companion? Is there a specific threshold that indicates the moment when my dog might begin to benefit from these nutritional additives? As I ponder this question, I find myself grappling with the myriad of factors that could influence this decision. Should I take into account my dog’s breed, size, or even their pre-existing health conditions? Could the onset of certain behaviors, such as reluctance to engage in play or difficulty navigating stairs, serve as subtle indicators that my dog may be in need of joint support? Furthermore, how do the recommendations vary between the different stages of a dog’s life, from exuberant puppyhood through the tranquil years of adulthood, to the more contemplative phase of seniority? Ultimately, what signs should I be vigilant for, and how can I best ensure I am making an informed choice for my pet’s health?