“…Regarding physical symptomatology in ARFID, common clinical signs are failure to thrive, gastroesophageal reflux, constipation, nausea, early satiety, abdominal pain, and global developmental delay (Cooney et al, 2018; Eddy et al, 2015). Particularly for AN, ARFID and other restrictive eating disorders, specific nutritional deficiencies, such as the lack of vitamin C, B1, B6, B9, B12, D or protein‐calorie malnutrition and frequent vomiting can cause inflammation, atrophy of the GI system, and immune dysfunction, resulting in medical complications in the digestive system (Benezech, Hartmann, Morfin, Bertrand, & Domenech, 2020; Bern & O'Brien, 2013; Bern, Woods, & Rodriguez, 2016; Hadley & Walsh, 2003; Johansson, Norring, Unell, & Johansson, 2012; Lelli et al, 2014; Reas, Zipfel, & Rø, 2014; Tomita et al, 2014). Thereby, restrictive eating disorders can be confused with GI diseases—suggesting that the diagnosis of ARFID is easily overlooked and the specific clinical consequences can be missed (Bern & O'Brien, 2013).…”