My 11 year old Boston (29 pounds) started squatting in his rear legs like his hips were just too painful to stand upright, and it broke my heart because he has always been so active and loves to chase his tennis ball. My niece told me about these and I thought it wouldn’t hurt to try them, but I was concerned he wouldn’t eat them because he is such a picky eater! My husband just takes one each morning and one each evening and crushes them with his fingers into a bowl, puts his favorite food on top, then mixes them together well. He isn’t squatting in his rear legs anymore and he is chasing his ball again. It’s like he has become five years younger within a matter of months. You can’t give up, though, because it takes about a month for it to work completely. This isn’t hit-or-miss medication/supplement. You must give them every single day and wait for the results. Then when baby acts like he is all better, you can’t just stop using them. They may be a little expensive, but if you love your furr-baby like we love ours, you will do whatever it takes to keep them comfortable and ready for exercise so they live longer! I’m thinking about getting some of the human version for my 65 yo husband and myself (55 yo). The results really are that amazing!