The first thing that came to my mind when I read the article was "aahaa! This proves that Bush is really stupid" :-)
That's bad. Very bad. I need to be more careful when justifying my opinions.
PS: the article also said "There was no difference in IQ score between strict vegetarians and those who said they were vegetarian but who said they ate fish or chicken" so if the vegetarian who sent it to me was trying to score a point against me it didn't work! Since I hardly, if ever, eat red meat, and this kind of empirical study does not tip on a binary (yes/no) scale, I can certainly claim to fit this category.