Not to be too humorless about this (I saw the findings and didn't think them much worth mentioning), but K-Lo's reaction to a recent study showing that IQ has a strong and linear correlation with vegetarianism is telling. Methodologically rigorous empirical data is, sort of by definition, not "propaganda." In any case, she was (I think) joking, so I guess it's all fine, or supposed to be, but I wish people would stop suggesting, even in jest, that data they don't like is simply bullshit.
So long as I'm on the study, I can think of a few troublesome variables for these findings (vegetarianism also correlates heavily with income and city-living, as does, I assume, IQ), but they basically track with what you'd expect. As a lapsed vegetarian, it seems fairly clear that eating factory-produced meat is ethically horrendous, and that I am often and daily accumulating some pretty bad juju. If only I had the self-restraint to follow Neil's threefold division of meats.