All my dogs have been on a raw diet for almost 2 years, the puppies started on raw at 8 weeks old. They are all fit, trim, no allergies, love their food, great shiny coat and overall well being but I did do quite a bit of research before I made the jump over to raw. There was a really good and long thread on here awhile back, I searched it for you and found it here:
http://www.yorkietalk.com/forums/yor...odel-diet.html
Hope you find this information helpful and good luck.