Yeah, we'v gone over this question before - no definitive answer, as I recall. Seems to be me to stand for Not For Sure - like if you buy something out, it's like generic ingredient instead of being so crazy specific (skinless, boneless, boiled in filtered water, salt added, served in greeen bowl....yada, yada, yada). Ok, I WAS only kidding about not for sure. And the green bowl.