In dogs, autophagy plays a critical role in maintaining cellular health by degrading and recycling damaged proteins and organelles. This process is essential for cellular homeostasis, especially as pets age. Just like in humans, the efficiency of autophagy can decline over time, leading to an accumulation of cellular debris, which may contribute to various age-related diseases. By enhancing autophagy, we may be able to support healthier aging in our canine companions, potentially reducing the risk of conditions such as arthritis, kidney disease, and even some forms of cancer. Research in geroscience has shown that stimulating autophagy can improve healthspan—the period in which dogs remain healthy and active—as well as potentially extend lifespan. This is important not only for longevity but also for the quality of life. For example, a dog that maintains healthy cellular function may exhibit greater vitality, better mobility, and improved immune responses, allowing them to enjoy their golden years more fully. Exploring how autophagy can be influenced by diet, exercise, and emerging therapies might open exciting new avenues for dog owners looking to enhance their pets' quality of life as they age.