Study design: Spinal cord injury (SCI) results in gastrointestinal (GI) complications, including gastroesophageal reflux disease and constipation, but much of the data is based on older technology. Objective: GI transit times were determined in subjects with SCI using a new device called a SmartPill. Our principal goal was to assess whether this new technology can be applied in persons with SCI. Methods: SCI and age-and gender-matched able-bodied (AB) control subjects not taking proton pump inhibitors were studied. Following an 8-h overnight fast, subjects consumed 120 g EggBeaters (60 kcal), two slices of white bread (120 kcal) and 30 g strawberry jam (74 kcal). A pH calibrated SmartPill capsule was swallowed with 8 ounces of water, after which subjects fasted for an additional 6 h prior to consuming an Ensure Plus nutrition shake (350 kcal). Subjects remained fasted for an additional 2 h, after which time they resumed their regular diets. Results: Twenty subjects with SCI and 10 AB control subjects were studied. Data are expressed as mean±s.d. Comparing the group with SCI to the AB control group, gastric emptying time (GET), colonic transit time (CTT) and whole gut transit time (WGTT) were prolonged (GET: 10.6 ± 7.2 vs 3.5 ± 1.0 h, Po0.01; CTT: 52.3 ± 42.9 vs 14.2 ± 7.6 h, P¼0.01; WGTT: 3.3 ± 2.5 vs 1.0 ± 0.7 days, Po0.01). No complications or side effects were reported. Conclusion: Our results indicate that the SmartPill technology is a safe, non-invasive assessment technique that provides valid diagnostic information in persons with SCI.