Liquid-Vet was recommended by my chiropractor, who uses it for her 3 dogs. My dog has hip dysplasia and is 8 years old. This has done wonders for her! She loves the taste and we have seen a huge decrease in her pain. She is back to her frisky self! Another reason I like the product is the cost. It is 1/2 the cost of the other product I was using. Great product!