Watch the movie Supersize Me... this is the guy that only ate McDonalds for a month. He talked about the chicken mcnugget.
Of more interest was the McDonald's French Fry... after several weeks to note decomposition there was none at all... made you wonder how pumped full of preservatives they were.
Food tastes soooo much better in Argentina than in states, I have to believe because it is more natural.
Tim