The authors tested a number of children using what could be called a “stage two Feingold Diet.”
The diet used, in other words, eliminated food dyes and several other additives, but did not eliminate salicylate-containing foods such as apples and oranges.
More than half the subjects exhibited a reliable improvement in behavior and negligible placebo effects,
In addition, five other symptoms often accompanying ADHD tended to improve on the experimental diet — halitosis, night awakenings, difficulty to get to sleep, rhinitis, and headache.