Kibble wise, Winston needs a low protein food and is fed California Natural. It's working great for him and is the only food he can eat without problems. I alternate between the Lamb & Rice and the Chicken & Rice, for different meat sources. It says it has only 21 % protein level.

Hopefully someone else will be able to help you out some more though. I wish I could help more pertainig to raw, but I don't know enough about it to do so.