Clinical trials
Gut Health clinical trials
Below are recruiting gut health clinical trials, each written for real people, not researchers. We’re tracking 86 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07198984Recruiting
Boosting gut bacteria to improve digestive health
This study tests whether boosting certain gut bacteria can improve your gut health. If you're a healthy adult who exercises regularly or eats a flexitarian diet, this trial may be for you.
Jouy-en-JosasAges 20–80 - NCT07134790RecruitingPhase 2
Probiotics to improve gut health during pregnancy
This trial tests whether taking probiotics during pregnancy can improve gut health in mothers living in areas where gut infections are common. It is for women who are in their first or early second trimester and who have certain bacteria in their stool.
Bobo-DioulassoAges 18 years+ - NCT07081698Recruiting
Walnuts as a first solid food for healthy babies
This study tests whether adding walnuts (ground into a powder or paste) as a first solid food is safe and healthy for breastfed babies. It may help families understand how to introduce nuts early.
Fort Collins, ColoradoAges 5 months–5 months - NCT07046468Recruiting
Smart pill to check gut health in colon inflammation and cancer
This trial tests a smart pill that measures gut health in people with colon inflammation (ulcerative colitis) or colon cancer. It aims to see if the pill can help doctors better understand how the gut is working during treatment or before surgery.
Nijmegen, GelderlandAges 18 years+ - NCT06899581Recruiting
Gut health study for children with cancer
This study looks at gut health in children with certain cancers. It may help researchers understand how to better support children during treatment.
LondonAges 1 month–16 years - NCT06828159Recruiting
Can wild blueberries improve joint health?
This study tests whether eating wild blueberries can improve joint health in people with arthritis. You would eat blueberries or a placebo daily for several weeks to see if they help with pain and stiffness.
Oklahoma City, OklahomaAges 40–75 - NCT06817031Enrolling by invitationPhase 2
Probiotics for gut health in pregnancy – Bangladesh study
This study tests whether a daily probiotic capsule during pregnancy can improve the health of a mother's gut, especially if she is exposed to unclean water or poor sanitation. Pregnant women early in their second trimester who live in the Matlab area of Bangladesh may join.
ChāndpurAges 18 years+ - NCT06720558Recruiting
Placebo probiotic effects on gut health in mild GI symptoms
This study tests whether a placebo probiotic can improve gut health and overall well-being in people with mild digestive issues like gas, bloating, or irregularity. If you have mild symptoms that don't stop your daily activities, this trial may help understand if believing you're taking a probiotic can make you feel better.
MilanAges 20–65 - NCT06284577Recruiting
Quality of life and gut health in children with cystic fibrosis
This study looks at how a drug called ETI (a combination of three medicines) affects the quality of life and gut health of children with cystic fibrosis. If you or your child has the right type of CF and is between 2 and 18 years old, this trial may help us understand how treatment improves daily life and digestion.
OsloAges 2–18 - NCT07728032Recruiting
How diet and medicine affect gut health in PKU children
This study looks at how a phenylalanine-restricted diet or certain PKU medicines affect gut health in children with PKU. It also includes healthy siblings or household members as a comparison group.
Birmingham, BirminghamAges 3–17 - NCT04248127Recruiting
Honey yogurt to improve gut health and mild inflammation
This study tests whether honey-flavored yogurt can improve gut health and “low-grade” inflammation in middle-aged and older women after menopause. You may be asked to follow a yogurt-focused plan and avoid certain foods or supplements to see the effect.
Davis, CaliforniaAges 45–65 - NCT03418857RecruitingPhase 1/Phase 2
Probiotics for weight- and blood-sugar–related gut health
This trial tests whether taking probiotics can improve gut health in people with early metabolic problems related to extra body fat, cholesterol, blood pressure, or blood sugar. It’s a Phase 1/2 study, meaning safety and early effectiveness are being tested.
University Park, PennsylvaniaAges 55–75 - NCT07749092Recruiting
Kimchi powder for gut health in IBS
This study tests whether taking kimchi powder (a dried form of the fermented cabbage dish) can improve gut health and symptoms in people with diarrhea-predominant IBS. You'll avoid regular kimchi for about 2 months, then take the powder daily and track how you feel.
YangsanAges 20–70 - NCT07787026Recruiting
Fiber supplement study for gut health
This trial is testing the short-term effects of a multi-fiber supplement on gut health. If you are generally healthy and meet the dietary restrictions, you may be able to participate.
Providence, Rhode IslandAges 18 years+ - NCT07796971Recruiting
Exercise in low vs normal oxygen for weight and gut health
This study tests two exercise programs—one in low oxygen, one in normal oxygen—to see which is better at reducing body fat and improving gut health in adults aged 50–75 who are overweight or obese. You'll do high-intensity interval training (short bursts of intense exercise) and we'll monitor your results over time.
Bellerive-sur-AllierAges 50–75 - NCT07626606Recruiting
Gut Health and Rotavirus Vaccine Response in Adults
This study examines how the health of your digestive system affects how well your body responds to an oral rotavirus vaccine (a vaccine given by mouth to protect against rotavirus infection). You'll have two endoscopy procedures—a camera test to look inside your digestive tract—and provide samples to help researchers understand this connection.
Lusaka, Lusaka ProvinceAges 18–50 - NCT07553234Recruiting
Gut Health and Side Effects from Breast Cancer Hormone Treatment
This study looks at how the bacteria in your digestive system may affect side effects from abemaciclib, a hormone-based breast cancer drug. By collecting stool samples, researchers hope to understand which patients might experience fewer problems and how to better manage treatment.
Chicago, IllinoisAges 18 years+ - NCT07437911Recruiting
Can a Supplement Help with Nutrient Gaps for GLP-1 Users?
This study tests whether a daily supplement can help fill nutrient gaps and improve gut health for people who are already taking GLP-1 weight-loss medications (like Ozempic or Wegovy). Participants must be on a stable dose for at least 8 weeks and be generally healthy without other chronic conditions.
Santa Monica, CaliforniaAges 18–59 - NCT07435831Recruiting
Kimchi and gut health study
This trial tests whether eating kimchi every day for 3 weeks can improve gut health in people who are overweight. You'll be asked to eat study food daily and follow the study plan.
Davis, CaliforniaAges 19–70 - NCT07125001Recruiting
Mango study for Hispanic/Latino teens' health
This study looks at whether eating mango every day for 12 weeks can improve gut health and heart health in Hispanic/Latino teens who are overweight. Participants will be asked to eat a mango product and take daily photos.
Davis, CaliforniaAges 12–19 - NCT06837272Recruiting
Gut health and brain health in Alzheimer's disease
This study looks at how the bacteria in your gut might be connected to memory and thinking problems in Alzheimer's disease. It may help us understand if changes in the gut can affect brain health.
Jining, ShandongAges 60–80 - NCT06941090Recruiting
Stool sample collection for nutrition gut health study
This study asks participants of the NutriNet-Santé health study to provide a stool sample. Researchers want to understand how diet and gut bacteria affect health.
BobignyAges 18 years+ - NCT07207434RecruitingPhase 2
Probiotic supplement for pregnant women to improve gut health
This trial tests whether taking a probiotic during pregnancy can improve gut health in women living in areas where gut infections are common. It may help reduce harmful bacteria and related health problems for both you and your baby.
Matiari, SindhAges 18–49 - NCT06433115Recruiting
Lean beef and your heart and gut health trial
This study tests how eating lean beef for 4 weeks affects your heart health and the bacteria in your gut. If you qualify, you'll be asked to follow a consistent diet and activity routine during the study.
Columbia, MissouriAges 18–45
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Common questions
- Are there clinical trials for gut health?
- Yes. Clin2 currently lists 86 recruiting gut health studies from the U.S. registry, each rewritten for real people, not researchers, so you can see what it’s testing and who it’s for.
- How do I know if I qualify for a gut health trial?
- Each study lists its eligibility criteria — rules about age, diagnosis, and prior treatments. On every Clin2 trial page we explain these in words written for real people and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Does it cost anything to join a gut health trial?
- Using Clin2 is always free. Many trials cover the cost of the study treatment and related visits; some reimburse travel. The study team explains exactly what’s covered before you decide.
Related conditions
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. Talk with your doctor about whether a specific trial is right for you.