Attention deficit hyperactivity disorder is a psychiatric disorder of the neurodevelopment stage in which significant problems include attention, hyperactivity or acting impulsively. ADHD is a brain disorder caused by faulty connections between nerve cells that regulate attention. Types of ADHD include 1) Combined ADHD (the most common subtype), which involves symptoms of both inattentiveness and hyperactivity/impulsivity 2) Inattentive ADHD (previously known as ADD), which is marked by impaired attention and concentration 3) Hyperactive-impulsive ADHD, which is marked by hyperactivity without inattentiveness .Many health experts, however, do believe that diet may play a role in relieving ADHD symptoms. DIETS OF ADHD INCLUDE: • Eat a high-protein diet, including beans, cheese, eggs, meat, and nuts. • Eat fewer simple carbohydrates, such as candy, corn syrup, honey, sugar, products made from white flour, white rice, and potatoes without the skins. • Eat more complex carbohydrates, such as vegetables and some fruits (including oranges, tangerines, pears, grapefruit, apples, and kiwi). • Eat more omega-3 fatty acids, such as those found in tuna, salmon, other cold-water white fish, walnuts, Brazil nuts, and olive and canola oil.