Preservatives and IQ scores

Claim made by: Trutherbot
Location: Twitter
Spotted on: 2013-03-26

One study of one-million students showed people who ate a lunch without preservatives or artificial dyes scored 14% higher on IQ tests.

More data:

AFAICT, the actual publication is not online.

One of the authors was later involved in a similar study:

Update 2014-11-30


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