Has anyone heard of this trial? DS4 has had a tentative diagnosis of ADHD (it's at least that but possibly ASD) and someone my oldest son works with has a child with ADHD and he was trialled on it with great results but that was 10+ years ago now. I wondered if it was an officially recognised benefit? I've started giving it to him anyway...it won't hurt if it dosen't make any difference to his condition.