Psychological and Dietary Treatment in IBS

Patients will receive iCBT for 10 weeks, divided into five successive steps. The iCBT will be guided by online therapists and emphasizes acceptance of symptoms through exposure training. Patients have to report that they have worked through a treatment step to get access to the next. Patients will be encouraged to work through steps 1-4 during the first half of the treatment and to spend the latter half on step 5, in which exposure exercises will be introduced. The treatment aims to break the vicious cycle between avoidance behavior, symptom severity and functional impairment.

Patients will receive 10 weeks of standardized treatment with low FODMAP diet consisting of 3 stages: FODMAP restriction; FODMAP reintroduction and FODMAP personalization. These stages will be covered in at least three appointments by primary care dieticians in Region Örebro County.