 The study is a randomized controlled, double blind, parallel trial. A 4-week run-in period with refined wheat RW products will be included prior to the intervention for all subjects. Thereafter, two different treatments will be evaluated e.g. a 12-week intervention with whole grain wheat WGW products 98g of WGW per day and a 12-week control intervention with RW products. Two experimental visits will be planned before and two experimental visits will be planned after the 12-week intervention period. In the first experimental visit the investigators will determine liver fat and abdominal fat distribution by magnetic resonance spectroscopy MRS and magnetic resonance imaging MRI. In the second experimental visit the investigators will comprehensively phenotype the participants which will include the response to a mixed meal challenge test. 