My dogs eat a fish and potato blend that's good for their coat and not too terribly expensive. Never had any health issues and my 10 year old Rottweiler still plays like a puppy.
Dogs have strong stomachs and can eat almost anything. I really think the whole "raw food" thing is a bit of a crazy and not really necessary.
Now if your dog develops allergies to specific proteins, and that's not uncommon either, it's a different story.
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