Dr. Kathleen J. Motil is Professor of Pediatrics at the USDA/ARS Children’s Nutrition Research Center, Baylor College of Medicine, and practices pediatric gastroenterology at Texas Children’s Hospital, Houston. Dr. Motil’s research has focused on gastrointestinal and nutritional issues in children with Rett syndrome. She conducted studies on energy, protein, calcium, and vitamin D in Rett syndrome. From the Natural History Study, she described the clinical spectrum of gastrointestinal dysfunction in Rett syndrome. Most recently, Dr. Motil explored the role of the microbiome and metabolome on gastrointestinal function in Rett syndrome. Dr. Motil published numerous papers in her field of expertise.