We have been feeding our 8 year old dog raw since she was around 2 when she was struggling with grain based foods, she was skinny and had skin issues. We have had a happy and healthy dog since with the exception of when I tried her on grain based food again 2 years ago over short period when we got a puppy, at the advice of a vet. Extremely quickly she got fat and sad. We quickly switched back and feed both of them raw and voila! 2x healthy and happy dogs again! The dog training has also helped us to be able to better communicate with our dogs, to understand dog behavior and avoid frustration.