The relationship between nutrition and inflammatory bowel disease (IBD) has been an area of substantial interest and research for many decades now. Evidence-based nutritional strategies are being utilised as a key part of the therapeutic armamentarium in Crohn’s disease for both induction and maintenance, as primary and adjuvant treatment methods. Exclusive enteral nutrition, for instance, is well established in the treatment of paediatric IBD and adult centres are increasingly incorporating it into treatment models as an effective, drug-free alternative.  The role for partial enteral nutrition and Crohn’s disease specific diets are also being more clearly elucidated. Used appropriately, and through engagement with dietetic support services, nutritional therapies can not only achieve the IBD treatment ‘targets’ but serve to optimise other vital aspects of care, such as growth, bone health, body composition and overall patient well-being. Here we discuss some of the mistakes that are frequently made in the area of nutritional management of IBD. The discussion is evidence based, with key references incorporated for further analysis beyond the scope of this article, and combines several decades of leading clinical and research experience in the area of nutrition and IBD from the authors. 

Abdominal distension and bloating are among the most frequently misunderstood complaints in gastroenterology. They are often used as interchangeable terms, a conceptual mistake that continues to drive diagnostic errors and ineffective treatment. According to Rome IV, bloating and distension may represent either a primary disorder of gut–brain interaction (DGBI) or occur as symptoms with other DGBIs, such as irritable bowel syndrome (IBS), functional dyspepsia (FD) or functional constipation (FC).