These leaps and bounds make a huge difference. Our dog is 9 years old, and they really help with his hips. We ran out, before we went on the subscription program … we could tell our dog was less agile in the timeframe of not having the chews. The cost of chews is well worth the happiness we have in having a happy pup when we walk with him. And this is not an AI not written review or sponsored review, just really believe they work for our pup.