Food intake and serum levels of iron in children and adolescents with attention-deficit/hyperactivity disorder.

Objective: To investigate hematologic variables related to iron deficiency and food intake in attention-deficit/hyperactivity disorder.

Method: The sample comprised 62 children and adolescents (6-15 years old) divided into three groups: Group 1: 19 (30.6%) patients with attention-deficit/hyperactivity disorder using methylphenidate for 3 months; Group 2: 22 (35.