I never write reviews but felt I needed to share our good news. Our beautiful, 7 1/2 yr. Old Duffy, a border collie/Great Pyrnees mix, had seemingly turned into a senior doggie in a short period of time. He was sluggish and hesitated, making back and forth motions, before being coaxed up and onto the couch and bed. He started not wanting to go for rides because he didn't like getting in and out of the car. The vet examined him and all his vitals were good so I was just about the buy him a ramp for the car when I saw the video about Natures Blend and decided to try it. He had always been an unenthusiastic eater, sometimes waiting to eat his breakfast until dinner but as soon as I put his NB food down he gobbled it up. It has now been a month since we switched to NB and he is a new doggie! He no longer hesitates before jumping on or over anythings, jumps into/out of the car with ease, and has his old energy back for long walks. He acts like a puppy again. We are amazed and thrilled. We have our beloved Duffy back! Suzanne M.