Inclusion Criteria (Individuals with spinal cord injury):  Spinal cord injury resulting in the need of a wheelchair BMI: 16-32 kg/m2  Inclusion Criteria (Healthy controls):  Intact spinal cord Matched on gender, age and BMI to the group with spinal cord injury  Exclusion Criteria:  Treatment with antidiabetics Treatment with anti-resorptive agents Gastrointestinal disease Smoking Long term steroid treatment Weight change more than 3 kg within the last 3 months. Overweight or intestinal surgery