Dietary composition of adult eosinophilic esophagitis patients is related to disease severity

Background In addition to the elimination diet, dietary composition may influence disease severity in patients with eosinophilic esophagitis (EoE) through modulation of the immune response. Aim To explore the immunomodulatory role of nutrition before and during elimination diet in adult EoE patients. Methods Nutritional intake was assessed in 39 Dutch adult EoE patients participating in the Supplemental Elemental Trial (Dutch trial registry NL6014, NTR6778) using 3‐day food diaries. In this randomized controlled trial, diagnosed patients received either a four‐food elimination diet alone (FFED) or FFED with addition of an amino acid‐based formula for 6 weeks. Multiple linear regression analyses were performed to assess associations between the intake of nutrients and food groups per 1000 kCal and peak eosinophil count/high power field (PEC), both at baseline and after 6 weeks. Results At baseline, we found a statistically significant negative (thus favorable) relationship between the intake of protein, total fat, phosphorus, zinc, vitamin B12, folate, and milk products and PEC (p