I've been blessed (or cursed?) in life with an exceptionally intelligent terrier named Tucker. He has a ton of food allergies, so he has to eat this special dog food with no wheat or chicken products, and years ago we settled on buying him the salmon flavour. Six months or so ago, tragedy struck our household when the store temporarily ran out of his go-to bag. Being naive, I grabbed a bag of white fish food in the same brand instead. Fish is fish, right? NO. No, it isn't.