Attention deficit hyperactivity disorder is most prevalent in children. Symptoms include inappropriate levels of hyperactivity, impulsive behavior, and lack of attention. 3-9% of children suffer from the symptoms of ADHD. Treatments of ADHD vary: pharmacological therapy includes stimulants and non-stimulants, whereas non-pharmacological treatments include restriction diet, nutrient supplements, and psychosocial interventions. Psycho-stimulant treatment is not beneficial for 20-30% of children with ADHD. The purpose of this study is to determine if diet/nutrition and parent training treatments are effective in managing the symptoms of children with ADHD