Here is some infromation for parents looking for alternatives to ADHD meds.
Dr. Weil, the alternative medicine guru cites a study in Australia (1) that compares the results of taking methylphenidates such as Ritalen and Concerta versus a supplement of omega-3 fish oil and omega-6 in the form of evening primrose oil. The omega-3 and omega-6 supplements showed the best results. Dr. Weil's blog post is here.
There is a recent book on the topic by Dr. Sandy Newman: ADHD Without Drugs. Dr. Newman recommends that the child also take a multivitamin and a probiotic daily to help keep the gut healthy.
Dr. Weil also says to "be sure to rule out hearing or vision problems, allergies, thyroid disorders, depression, or even boredom in a gifted child" before resorting to medication. Here is a link to his blog on ADHD.