natural route | ADHD Information

My son is 10 years old with ADHD. He is on meds. during the school year except weekends.  I don't really like giving him meds. and have tried various natural supplements. He is calmer on the salmon oil and vitamin B complex but still has trouble staying seated and is distracted. He also talks loud. I have tried Omega 3,6,9's,Salmon oil,vitamin B complex, natural vitamins from the naturopath,various homeopathic remedies, a chewable cal/mag supplement and cranoi sacral therapy. Have any of you ADHDers had success with any natural alternatives?