I've just gotten a westie rescued from a puppy mill and so unfortunately I don't know anything about her history or any previous medical issues or food allergies so I'm wondering if anyone can help me with some questions about dry food for her. I feed my spaniel canine caviar brand dog food from the vet and have been feeding the westie (Susie) the same thing. My question is about the percentage protein desirable in a food for her. I had a shepherd mix that required a very low protein level (adult food as a puppy etc) and am worried about shocking poor Susie's system. We reckon she's about ten years old so I've been feeding her Special Needs Adult Dog Food for older dogs. Does anyone have a westie and have any recommendations or thoughts on dry food for them?