Food Limitations In Crohn's Disease and Ulcerative coliTis

The goal of this clinical trial is to increase the knowledge on what type of diet affects inflammation and how to better convay that information in patients with inflammatory bowel disease (IBD) and decrease selective eating in patients with IBD. The main questions it aims to answer are: * will the use of calprotectin as a control for changes in inflammation decrease selective food choices? * will the use of a digital information tool increase quality of life (QoL) och decrease selctive eating patterns? * will a diet based on nordic food choices decrease inflammation and increase QoL? Researchers will compare with IBD-patients in ordinary care. Participants will eat a test diet during six weeks or go through a digital information tool.