I understand that you are to not use any other supplements. What about medications that the child might be taking?
I recommend getting rid of unnecessary supplements but strongly encourage parents to continue prescription medications and never stop or taper them without some guidance from the prescribing physician. I believe that a child with autism or developmental disorders should be under the primary supervision of a licensed physician who should always be consulted about any medicines or supplements recommended to the child by any other healthcare provider (physician, naturopath, DAN doctor, herbalist, etc.). No prescribed medicines or supplements should ever be reduced or stopped without permission and upon the direction of the prescribing physician.