Barrett's Esophagitis in Anorexia Nervosa Binge/Purge Subtype

Who May Qualify: - Patients diagnosed with an eating disorder diagnosis that includes purging history - Ages 18-65 - Purging history =\>5 years - Purging or rumination at a minimum of once daily upon admission. - Admission to the ACUTE Center for Eating Disorders and Severe Malnutrition Who Should NOT Join This Trial: - Any eating disorder diagnosis that does not include purging behaviors - Ages under 18 and over 65 - Patients who otherwise meet the current ACG screening guidelines (chronic GERD and 3 or more risk factors for Barrett's mentioned in the Background) - Received mandated care at time of enrollment - Inability to consent to participate in the research Always talk to your doctor about whether this trial is right for you.