I have always fed my two year old black lab on Fish4dogs since she was a puppy after we were given samples to try at puppy school. Her coat is magnificent and she is in perfect health. We also have a 5 year old Springer who has been fed a cheaper working dog food but since having him neutered two years ago his coat went thin and fluffy and he looked dreadful. We could actually see his pink skin through his coat. Five weeks ago we decided to change his normal food to Fish4dogs Salmon and you would not believe the change in such a short time. His coat is no longer fluffy and his hair is so thick and shiny it's unbelievable. I just wish I had taken before and after photos.