Inclusion Criteria:  Body mass index between 18,5 and 35 kg/m² Age between 25 and 75 years Ability to understand and follow study-related instructions Consent to information in case of unexpected detected pathological findings  Exclusion Criteria:  contraindications for magnetic resonance imaging (metal in or on the body, e.g. pacemaker) pregnancy people with limited thermal sensors or increased sensitivity to heating Persons in whom circulatory disease cannot be excluded after questioning Individuals who report a hearing disorder or increased sensitivity to loud sounds Claustrophobia subjects incapable of giving consent are excluded acute illness or infection within the last 4 weeks Conditions that, in the judgment of an investigator, jeopardize the success of the study or indicate that the subject is at risk of harm type 1 diabetes Patients with type 2 diabetes and pharmacologic therapy for diabetes outside of metformin and DPP-IV inhibitors HbA1c > 10,0 % duration of diabetes >= 2 years