Jeni Johnstone is a Research Investigator at the Helfgott Research Institute in Portland, Oregon, completing a National Institutes of Health (NIH) clinical research fellowship. She has a dual appointment at Oregon Health & Science University (OHSU) as an Assistant Professor and practicing Clinical Psychologist in the Department of Child and Adolescent Psychiatry.
Her research focuses on micronutrient supplementation in populations with ADHD, mood issues, and aggression. She leads the Science of Nutrition Affect and Cognition in Kids (SNACK) Lab at OHSU. Dr. Johnstone is leading the Micronutrients in ADHD Youth, the “MADDY” Study, a three-site, international, randomized controlled trial for children who have ADHD and irritable mood. Through an examination of participant biological samples, she and her collaborators are examining the micronutrients’ biological signature, and potential mechanisms of action.