Ultra-processed Food Consumption and Behavioral Disorder and Cognitive Function

The goal of this interventional study is to determine whether reducing ultra-processed food consumption in children and adolescents can improve cognitive function. The main question it aims to answer is: Does reducing ultra-processed food consumption through online nutritional education improve cognitive function in children and adolescents with attention difficulties? Researchers will compare a nutritional education group to a non-intervention group to assess whether reducing ultra-processed food intake leads to cognitive improvement. Participants will: Attend a weekly online nutritional education course for 12 weeks Be encouraged to replace ultra-processed foods with whole foods

Inclusion Criteria: * 10-15 years old * Diagnosed with attention deficit hyperactivity disorder (ADHD) or identified as having learning difficulties based on a specialist's or teacher's recommendation. * \>=six types or six servings of ultra-processed foods daily Exclusion Criteria: \- Younger than 10 years old or older than 15 years old