From high end kibble and commercial raw food to home made raw.
Arya (4) started raw 2 years old. When feeding kibble (Taste of the Wild), it was difficult to get her to eat and to keep weight on her. I originally had her on K9 Kraving, but switched to a mix of chicken, pork shoulder, and organs, with the occasional fish, egg, and beef. She LOVES it, and price-wise, it works out to the same amount as either the K9 Kraving or the TOTW.
Arya’s page: http://longlivingpets.com/index.php/arya