So they basically hypothesized ADHD is often a symptom of a food allergy, tested that premise and found some strong evidence for it. Just the kind of straightforward and useful study that somehow never seems to get funding.

Have a glance at the charts in the Lancet PDF (that erikpukinskis helpfully linked) to see the improvements versus the control group and the way that reintroducing high-sensitivity foods caused a regression:

http://marrym.web-log.nl/files/adhd-and-elimination-diet-rct...

Wow. If I was a NYTimes health reporter, I would start researching a story on how up-and-coming young families are requesting food allergy tests for their seemingly asymptomatic kids as a matter of course, because that's clearly going to be the trend now.