Healthy Joints, Happy Pets! Joint health and mobility problems do not discriminate with a dog’s age or size; any dog can be susceptible to the pain of inflammation. JOINT STRONG,™ was designed to be effective for any dog, by taking the guess work out of joint support and dosages. K9 Power JOINT STRONG,™ puts out the fire of joint inflammation with key ingredients, as found in wild diets. Reducing inflammation enables glucosamine, chondroitin, Omega 3s and more to work even better.