I appreciate the information posted here. The OT I spoke with about this would never in her wildest nightmares suggest chelation therapy. I believe she was trained in this whole retained reflex thing in school or somehow professionally, which leads me to think that this is a grayer area of confusion or controversy? Right now I am not so concerned with reflexes. My son clearly has weak core muscles and we're just working on some basic exercises so it's easier for him to sit at his desk and write.