Oliveira, R.Mendes, B.Neves, J. CunhaAmorim, E.Roseira, J.Sousa, H. Tavares de2024-11-222024-11-222024-01-011873-9946http://hdl.handle.net/10400.1/26322Exclusive enteral nutrition (EEN) is recommended for preoperative nutritional optimization (PNO) in adult Crohn's disease (CD) patients. However, during ambulatory oral EEN, a lack of routine monitoring for vitamins may occur, with a potential risk of hypervitaminosisrelated toxicity, which remains unexplored. This study aims to assess the serum levels of vitamins and micronutrients in CD patients undergoing EEN and to examine its potential impact.engVitamin and micronutrient excess in patients with Crohn’s disease under oral ambulatory exclusive enteral nutritionjournal article10.1093/ecco-jcc/jjad212.08491876-4479