Wow, I never woulda thunk. I hardly ever buy shredded because it is so much more expensive per pound. But I honestly thought that they were both the same.
I too have been watching the labels for a couple of years now, at one point we were going as far as following the Feingold diet for my son, now I am just cautious. A magazine that is new this year has had some really great "clean eating ideas in it" My Mom got me a subscription as a gift. http://www.cleaneatingmag.com/minisite/ce_index.htm