Even the strongest of power dogs start to slow down as they age, but that doesn't mean you have to put away the Frisbee. Zuke's Hip Action treats are a fun way to decrease joint pain and increase mobility in your pooch. Every treat contains 300 mg of Glucosamine and 50 mg of Chondroitin, plus essential co-factors to maximize absorption. And if that ingredient list doesn't have your dog salivating just yet, the fresh blueberries, apples, carrots and ground flax seed should do the trick.

Just because your dog doesn't tell you he's tired during your 5-mile hike doesn't mean he never hits the wall.