I am no expert as I have never fed RAW, probably never will but I do read with interest everything that comes across my message boards in regards to feeding RAW. I read this a few months ago and it does make a lot of sense to me so I thought I would share it with you since I notice that many feed a lot of chicken.
It comes from the Canadian Golden REtrievers web site and discusses dogs that eat soil while on RAW.
http://www.canadiangoldens.com/comments.cgi?sid=5118