We recently introduced our 15 year old to Fresh pet. He was diagnosed with renal disease and put on a special diet. He was extremely thin to begin with because he was not much of an eater, very picky. We decided to try Fresh pet and introduced him to the beef formula because it was the lowest in protein (At least out of the selection available at our local store). He absolutely loves the food and cannot seem to get enough of it. It has only been a few weeks but he seems so much healthier and vibrant, prancing around the house with his Brothers and sisters acting like a puppy.