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Is it an eating disorder, gastrointestinal disorder, or both?

Purpose of review The authors examine the differential diagnosis for gastrointestinal disorders that should be considered in individuals who present with nonspecific gastrointestinal and nutritional complaints suggestive of an eating disorder. Recent findings This review first identifies diseases with which eating disorders are often confused and then explores features in the history, physical examination, and laboratory studies, which can provide clues to the cause of the patient's symptoms. In addition, it discusses the recommended evaluation and treatments for the gastrointestinal diseases that most commonly mimic the presentation of eating disorders including Crohn disease (CrD), celiac disease, gastroesophageal reflux disease (GERD), and eosinophilic esophagitis (EoE). Summary The ubiquitous nature of the gastrointestinal complaints requires the clinician to consider a broad differential diagnosis when evaluating a patient for an eating disorder.