| Not Yet Recruiting | Evaluating the Ability of a Multi-Strain Postbiotic to Impact Inflammation, Immune Components, Gastrointestina NCT07387991 | Lindenwood University | N/A |
| Not Yet Recruiting | A Clinical Trial to Investigate the Safety and Efficacy of Bloat on Gas and Bloating in Healthy Women NCT07370740 | Arrae | N/A |
| Not Yet Recruiting | Foot Reflexology and Acupressure on Gastrointestinal Symptoms NCT07528534 | Osmaniye Korkut Ata University | N/A |
| Recruiting | The Effect of a Synbiotic on Intestinal Barrier Function and Microbiota Modulation in Middle-aged to Elderly I NCT07453823 | Chr Hansen - part of Novonesis | N/A |
| Not Yet Recruiting | PAN-CLO-BU (PANcreas-CLOstridium-BUtyricum) NCT07422103 | Casa di Cura Dott. Pederzoli | N/A |
| Recruiting | An 8-Week Study Evaluating Gut and Digestive Health After Use of a Dietary Supplement System NCT07421596 | SF Research Institute, Inc. | N/A |
| Not Yet Recruiting | Gastrointestinal Symptoms and Tolerance in Infants Fed Goat or Cow's Milk-based Infant Formula NCT07342972 | Ausnutria Hyproca B.V. | N/A |
| Not Yet Recruiting | Fecal Microbiota Transplantation in Children With Autism Spectrum Disorder and Gastrointestinal Symptoms NCT07371013 | Institute of Mother and Child, Warsaw, Poland | N/A |
| Not Yet Recruiting | The Effect of Daily Supplementation With Humiome® Post LB on Gastrointestinal Symptoms in Female Athletes NCT07366931 | Liverpool John Moores University | Phase 1 / Phase 2 |
| Not Yet Recruiting | Effect of H. Pylori Eradication on The Improvement of Gastrointestinal Symptoms NCT07272681 | Amany Usama Ahmed Arafa | — |
| Not Yet Recruiting | Diagnostic PCR Panel in Children With Acute Gastrointestinal Symptoms NCT07280624 | University of Oulu | N/A |
| Completed | The Effect of Abdominal Massage Applied to Patients by Caregivers in Palliative Care Clinics on Gastrointestin NCT07244302 | Saglik Bilimleri Universitesi | N/A |
| Recruiting | The Effect of Humiome® Post LB on Gut COMFort in healthY Adult Volunteers NCT06937814 | dsm-firmenich Switzerland AG | N/A |
| Recruiting | Impact of Weizmannia (Bacillus) Coagulans JBI-YZ6.3 on Gut Health and Fecal Microbiome Changes NCT07388264 | Lindenwood University | N/A |
| Completed | A Trial to Assess Gastrointestinal Responses to Dietary Fibers in Adults Using Weight Loss Medications NCT07012317 | Midwest Center for Metabolic and Cardiovascular Research | N/A |
| Completed | TRX Exercises and Gastrointestinal Health in Swimmers NCT07464509 | Aksaray University | N/A |
| Enrolling By Invitation | Specimen and Data Collection for a Novel Biomarker Combination for the Differential Diagnosis of Inflammatory NCT07471490 | DiaSorin Inc. | — |
| Completed | Probiotic and Prebiotic Use in Early Postoperative Period of Sleeve Gastrectomy NCT07051824 | Ayten Altunsaray | N/A |
| Active Not Recruiting | Assessment of Gastrointestinal Discomfort and Infections in Healthy Term Infants NCT06744699 | Ausnutria Hyproca B.V. | — |
| Completed | Effects of a Microalgae Extract Dietary Supplement on Gut Health, Anxiety, and Immune Function NCT06425094 | Colorado State University | N/A |
| Completed | Probiotic Effect on Gastrointestinal Symptoms (FLORABIOTIC REFUERZO). NCT06248177 | Clinica Universidad de Navarra, Universidad de Navarra | N/A |
| Recruiting | Mechanisms of Gulf War Illness NCT05972291 | VA Office of Research and Development | N/A |
| Completed | An Exploratory Investigation of a Supplement to Promote Gut Health NCT05831527 | Armra | N/A |
| Recruiting | Mother-Infant Cohort Study in Malaysia and China NCT04919265 | Universiti Putra Malaysia | — |
| Withdrawn | Pendulum D2D Glucose Control for Adults With Type 2 Diabetes NCT04228003 | University of Southern California | N/A |
| Completed | The Effect of Probiotics on GI Symptoms NCT03959722 | Karlijn te Poele | N/A |
| Unknown | The Efficacy of Probiotics to Reduce Antepartum Group B Streptococcus Colonization. NCT03696953 | Marquette University | Phase 2 |
| Completed | Effect of Probiotic Supplementation on Lactose Maldigestion Induced by Fat-free Milk NCT03659747 | Danisco | N/A |
| Unknown | Effects of GlutenShield, a Prebiotic, Probiotic, and Enzyme Supplement, on the Gut Microbiome of Adults With G NCT03403387 | East Tennessee State University | N/A |
| Completed | Safety Evaluation of a Diet and Nutritional Supplementation Program- Purify 2.0 NCT03685552 | Nature's Sunshine Products, Inc. | N/A |
| Recruiting | Combination Probiotic: BB-12 With LGG (Different Doses) in Treating Children With Autism Spectrum Disorder NCT03514784 | The University of Texas Health Science Center, Houston | Phase 1 / Phase 2 |
| Completed | Effect of Physical Form of Apples on Gastrointestinal Function and Satiety: a MRI Study NCT03714464 | University of Nottingham | N/A |
| Completed | Probiotic Supplementation Among Adults With Recurrent Gastrointestinal Symptoms NCT02277431 | University of Maryland, Baltimore | Phase 2 / Phase 3 |
| Completed | The Effects Of HMO On The Faecal Microbiota And On Gastrointestinal Symptoms In Healthy Volunteers NCT01927900 | Glycom A/S | N/A |
| Completed | Potato Fiber and Gastrointestinal Function: Phase 3 NCT01964599 | University of Florida | N/A |
| Completed | Proton Pump Inhibitors and Gastrointestinal Symptoms NCT02054455 | Federico II University | Phase 4 |
| Completed | A Controlled Trial to Evaluate the Effects of GanedenBC30 on the Immune System NCT01184456 | AIDS Healthcare Foundation | Phase 2 |
| Completed | A Study to Assess the Role of a Gluten Free-dairy Free (GFCF) Diet in the Dietary Management of Autism Associa NCT01116388 | Massachusetts General Hospital | N/A |
| Completed | Effect of Bifidobacterium Lactis HN019 on Colonic Transit Time and Digestive Symptoms NCT01171014 | Fonterra Research Centre | Phase 2 / Phase 3 |
| Completed | Transient Receptor Potential Vanilloid One (TRPV1) Receptor Expression in Children With Retrosternal Pain NCT00677378 | Medical College of Wisconsin | — |
| Completed | Enteric-coated Mycophenolate Sodium (Myfortic®) in Heart Transplant Recipients NCT00574197 | Cedars-Sinai Medical Center | Phase 4 |