ME / CFS is a relatively new condition that is also called chronic fatigue syndrome. Patients suffer from a paralyzing fatigue and fatigue that does not get better from rest. In this project, we want to verify whether ImmuneBiotech’s expertise, IBS product, also has effect on ME / CFS. Since most people suffering from ME / CFS also suffer from IBS, there is good reason to assume that the IBS product also has an effect on people with ME / CFS.