Good link. I switched my dogs to a venison and potato diet due to intractable allergy problems-- caused by every other dog food product-- and it's been wonderful. And expensive.
We got a new puppy in November and before we brought her home I did a lot of reading about the Raw diet (not for me) and other healthy alternatives.
I never knew that wheat and corn, both are used as fillers in normal kibble, can cause serious allergy problems in both cats and dogs. Our last dog had bad allergies and we probably spent $1000 or more at the vet trying to figure out the problem.
And don't get me started on the different meat "by-products" that go into animal feed.
Now we only feed grain-free wet and dry foods that use human grade cuts of meat. The animals love it and we haven't had to make any unneeded trips to the Vet.