Is Diet a Factor in Treatment of ADHD?

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Question: I've heard lots of pros and cons concerning using diet therapies like the Feingold diet for ADHD. I talked with a therapist who specializes in treating ADHD, and she was adamant that diet and nutrition have nothing to do with it. I was thinking of trying Feingold's diet on my 9-year-old son, but don't want to waste my time. What are your thoughts on the subject?

Answer: The therapist you talked with has -- as we say in the South -- a dog in the race. That might bias her opinion of diet therapy's usefulness with ADHD. In fact, the mental-health community as a whole maintains that no consistent body of science supports the efficacy of the Feingold diet or any other nutritional approach to treating ADHD symptoms.

That's true as far as it goes, but research results address averages; they do not predict individual outcomes. Let's just say, in other words, that a study of 100 kids presenting significant ADHD symptoms finds no significant effect of a certain dietary manipulation. What might not be reported is that the behavior of a certain number of the kids in the study did, in fact improve, and significantly so.

That seems generally to be the case with such studies. Some kids improve when put on a restricted diet like Feingold's, but some kids don't. (I'm choosing not to go into detail about the so-called Feingold diet, developed by research pediatrician Benjamin Feingold, but the interested reader can find ample description on the Internet.) After eight years spent researching his approach, which involved eliminating artificial food colorings and flavorings as well as chemical preservatives, Feingold presented his impressive findings to the 1973 Annual Conference of the American Medical Association. …