I have been feeding raw for about 1.5 years, I think? I noticed cleaner teeth, less itching (in Wylie, who had itched before), lots of energy, teeeeensy poos that did not have the voluminous undigested food, non-smelly poos, great breath (their breath is delicious) and Wylie's coat completely changed. He used to be super cottony and would mat horribly in certain places no matter what I did - now he is shiny, soft, and doesn't mat.