Please learn about it thoroughly. There is weak scientific evidence but plenty of anecdotal evidence.
On Monday NPR did a story saying it was not effective: http://www.npr.org/blogs/thesalt/2012/01/09/144796050/for-kids-with-adhd-the-elimination-diet-falls-short-of-success
Then today they ran another story about research that says it is: http://www.npr.org/2011/03/12/134456594/study-diet-may-help-adhd-kids-more-than-drugs
Here is my take:
Dr. Feingold was a doctor with Kaiser Permanente. On of my closest friends is a pediatrician with them and I mentioned to her the other day th