"My Great Pyrenees puppy, Abby, was born with a condition called Bilateral Luxating Patellas. She started having a lot of difficulty walking a few weeks ago and would not run at all. Both of her hind legs appeared stiff and her feet are turn outward - she is knock-kneed. Our family vet she will need to have surgery eventually, but I started her on the Synovi G3 soft chews to see if that would help in the meantime... IT REALLY HAS. Abby is still going to require surgery, but she is walking so much better and even runs around a little to try and keep up with her 4 yr. old Golden Retriever brother, Rumor. It's not a cure for my puppy, but because it's helped her feel a little better, I highly recommend this product!"