Effects of zinc and ferritin levels on parent and teacher reported symptom scores in attention deficit hyperactivity disorder.

Objective: It has been suggested that both low iron and zinc levels might be associated with Attention Deficit Hyperactivity Disorder (ADHD) symptoms. However, the association of zinc and iron levels with ADHD symptoms has not been investigated at the same time in a single sample.

Method: 118 subjects with ADHD (age = 7-14 years, mean = 9.