Subjects
Participants were recruited via advertisements at Örebro University Hospital and Örebro University campus as well as via social media. All participants signed a dated informed consent prior to any study-related activities. The participants’ eligibility for the study was assessed via questionnaire. The study participants were instructed to avoid any changes to their habitual diet and lifestyle during the study. Intake of probiotics or nutritional supplements containing pro- and/or prebiotics was not allowed from 4 weeks before the screening. The inclusion and exclusion criteria are listed in Inclusion and exclusion criteria for the study.