My 12+ y.o. Golden Retriever has had really bad GI problems for a while. After participating in a GI study with Texas A&M using this product, I was sold! He LOVES the taste and it has solved the pesky GI troubles. I highly recommend it. I guess I'd liken it to the product "ensure" for people. Good stuff! The Vet depot price is much lower than other vet sales places too.