Functional gastrointestinal disorders (FGD) and related motility issues are among the most prevalent GI disorders in the global population, particularly among children (Park, Mikami, LeClair, et al. 2015). These disorders are also called disorders of gut-brain interaction (Drossman and Hasler 2016).
Complaints such as digestive problems and abdominal pain often continue into adulthood, and the average healthcare costs associated with FGD in the United States may exceed $6,000 per patient (Dhroove…