Vibrant Pet was initially recommended to me by a couple of different Golden breeders. I had a golden a few years ago that did really well on it. Not only did it help with digestive problems, his coat and skin improved greatly.
About a month ago, I put my current golden (on my avatar) on it. His energy really increased; not to where is is running around like a crazy dog, but where I can tell…. he feels great! He has the nicest coat… soft and full.
Vibrant Pet also has an equine version, which I started using on my horse. He had digestive problems, and they have gone away with Vibrant. His coat too has improved, and it helps keep bugs away.
2 other things I like about this product: it doesn't take a lot, so on top of being good for the digestive system, there isn't much to digest in the first place. Plus, it is priced very well.