ADHD is one of the most common neurobehavioral disorders among children
and adolescents. In this prospective study, we aimed to measure circulating
zinc and ferritin levels in children with ADHD, pick up the deficient ones
to give zinc and iron supplements then compare before and after treatment
according to their Conner’s scores and Wecsler IQ test. Current study
included fifty children diagnosed as having ADHD by DSMV criteria, their
zinc and ferritin levels were measured by Colorimetric method and
enzyme-linked immunosorbent assay (ELISA) respectively. They were divided
into: group I (zinc only deficient),group II (zinc and ferritin
deficient),group III (non-deficient), cases with mineral deficiency received
zinc (55 mg/day) and/or iron (6 mg/kg/day) for 6 months then reassessed by
parent Conner’s rating scale. In group 1, there was no significant
difference between the Wecsler verbal and non-verbal IQ scores and
oppositional and cognitive problems in Conner’s scores before and after zinc
supplements, although there was significant improvement in attention,
hyperactivity, emotional liability and impulsivity. In group II, there was
significant improvement in verbal and total IQ but not in performance IQ,
also there was significant improvement in hyperactivity, emotional liability
and impulsivity with no significant difference in oppositional, cognitive
problems and inattention before and after zinc/ iron supplements. In
Conclusion, Zinc supplements in adjuvant to the main treatment significantly
improved symptoms of ADHD children. However, a combined zinc and iron
supplements was superior to zinc alone in alleviating ADHD symptoms as well
as IQ improvement.