Clinical trials
Dietary Intervention clinical trials
Below are recruiting dietary intervention clinical trials, each written for real people, not researchers. We’re tracking 119 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07754721Recruiting
Diet and lifestyle program for chronic acid reflux
This study tests a comprehensive program that combines diet and lifestyle changes to help people with chronic acid reflux (heartburn, acid regurgitation, or chest pain) feel better. It looks at how these changes can improve your overall health and reduce symptoms.
Hualien City, TaiwanAges 18–79 - NCT02016430Recruiting
Diet study to lower TMAO levels using gut microbes
This trial looks at whether a structured 12-week diet can lower a blood chemical called TMAO, which is linked to heart and kidney risk for some people. It may help you see if diet changes can shift gut microbes and reduce TMAO-related signals.
Cleveland, OhioAges 18 years+ - NCT05165706Recruiting
Study of how obesity affects insulin resistance over time
This study follows adults over time to understand how weight and body chemistry relate to insulin resistance. It may help researchers learn why insulin resistance happens and what could prevent or improve it.
Stanford, CaliforniaAges 35–65 - NCT05800990Recruiting
Study testing a plan for better meal timing
This study looks at whether changing when you eat can improve how well your body follows a daily schedule. It’s for generally healthy adults who aren’t on many medications and have no major health or mental health conditions.
Boston, MassachusettsAges 18–45 - NCT06973408Recruiting
Diet and lifestyle study for weight management
This study tests whether a specific diet and behavior program can help people with overweight improve their health. You will be asked to follow a specific eating plan and eat certain foods provided by the researchers.
GothenburgAges 18–70 - NCT07138313Recruiting
How diet affects sleep and daily rhythms
This study looks at how what you eat affects your sleep and daily rhythms. Healthy young adults aged 18-32 are invited to join to help researchers understand this connection.
UppsalaAges 18–32 - NCT04990024Recruiting
Diet trial for people with obesity using semaglutide
This study compares different diets to see how they affect “arterial stiffness” (how hard the blood vessels are) in people with obesity who are starting semaglutide for weight management. It may help find a diet approach that improves heart and blood-vessel health while you use semaglutide.
Beirut, Riad El SolhAges 18–49 - NCT05808036Recruiting
Test a diet app for IBS symptoms using the DOMINO diet
This trial studies whether a specific diet plan delivered through a phone app (the DOMINO diet) can improve symptoms in people with irritable bowel syndrome (IBS). It may help by changing what you eat to reduce gut symptoms, compared with standard care rules in the study.
LeuvenAges 18–70 - NCT04761523Recruiting
Diet fat changes to help prevent pancreatitis coming back
This study looks at whether changing how much dietary fat you eat can lower the chance that pancreatitis returns. It focuses on people who have had pancreatitis more than once and are not already receiving specific meal guidance for a medical reason.
BudapestAges 14 years+ - NCT04868526Recruiting
Food plan study for people who work nights
This study tests whether a specific dietary intervention can reduce health downsides from working night shifts. It is looking for generally healthy young adults who are able to follow the study plan and have not had certain mental health, substance use, or smoking history.
Boston, MassachusettsAges 18–45 - NCT07656805Recruiting
Anti-inflammatory diet for type 2 diabetes
This trial tests whether an anti-inflammatory diet can help people with type 2 diabetes. You will follow a special meal plan and have regular checkups to see how it affects your blood sugar and overall health.
Hefei, AnhuiAges 18 years+ - NCT06690892Recruiting
How eating beef affects brain health in young adults
This study looks at how eating beef affects thinking and brain health in young adults. You will eat beef daily and have brain scans to see if there are changes in memory or focus.
Lincoln, NebraskaAges 19–24 - NCT07380022Recruiting
Iron and zinc supplements for adults with chronic diseases
This study tests whether two dietary supplements can improve iron and zinc levels in adults with Crohn's disease, ulcerative colitis, hypertension, anemia, or multiple sclerosis. It aims to see if patients find them easy to take and if they help the body absorb these minerals better.
Trikala, ThessalyAges 18 years+ - NCT03880422Recruiting
Exercise and nutrition for weight and frailty after prostate cancer treatment
This study tests whether a structured exercise and nutrition program can improve obesity-related frailty and overall function in people with advanced prostate cancer who are taking hormone therapy (ADT). It may help with strength, mobility, and healthier body weight during/after ADT.
Buffalo, New YorkAges 18 years+ - NCT06547372Recruiting
Dietary changes for eczema relief
This study tests whether a specific diet can help manage mild to moderate eczema. It involves eating whole foods provided by the researchers for a set period and tracking your skin health.
Singapore, SingaporeAges 21–65 - NCT06603519Enrolling by invitation
Can a diet reduce inflammation after a colonoscopy?
This study tests whether a special diet can help reduce inflammation and improve gut health after a colonoscopy. It is for people who are getting a repeat colonoscopy because they've had polyps before.
San Diego, CaliforniaAges 18 years+ - NCT05977179Recruiting
Diet program for long-COVID fatigue and poor diet quality
This study tests whether improving diet quality can reduce fatigue and symptoms in people with long-COVID (post-acute COVID-19 syndrome). It may help if your diet quality is currently low and your fatigue is moderate to severe.
Baltimore, MarylandAges 50–94 - NCT07595809Recruiting
Diet and exercise for heart failure with weak heart pumping
This study tests whether combining a healthy eating plan (DASH diet) with supervised exercise can help people with heart failure where the heart doesn't pump strongly enough. The goal is to see if these lifestyle changes improve heart function and symptoms.
Zabrze, Silesian VoivodeshipAges 30 years+ - NCT07728669Recruiting
Digital diet app for people on GLP-1 therapy
This study tests a smartphone app that gives dietary advice to people who are overweight or obese and also take a GLP-1 medication (like semaglutide) for weight or diabetes. The app will help you follow a healthy eating plan while using the medication.
AlmatyAges 21–65 - NCT06438588Recruiting
Fasting-mimicking diet to reduce immunotherapy side effects
This trial tests whether a special low-calorie 'fasting-mimicking' diet can reduce side effects from common immunotherapy drugs for advanced cancer. If you're on a PD-1, PD-L1, or CTLA-4 inhibitor, this diet might help you feel better during treatment.
Jacksonville, FloridaAges 18 years+ - NCT06733363RecruitingPhase 2
Vegetable diet to prevent bladder cancer return
This trial tests whether a diet rich in cruciferous vegetables (like broccoli, cauliflower, and kale) can help prevent bladder cancer from coming back or getting worse. It is for people with early-stage, non-invasive bladder cancer who live in New York State.
Buffalo, New YorkAges 18 years+ - NCT06545721Recruiting
Weight changes and hormone health in PCOS
This study looks at how weight changes affect hormone levels and insulin resistance in women with PCOS. It may help understand if weight cycling is harmful or helpful.
Beijing, Beijing MunicipalityAges 18–45 - NCT06758817Recruiting
Nutrition, gut health, and rheumatoid arthritis study
This trial tests if a specific diet can improve your rheumatoid arthritis symptoms by affecting your gut bacteria. You may be eligible if you have active RA and are willing to follow a special meal plan for several weeks.
Lisbon, PortugalAges 18 years+ - NCT07372729Recruiting
Smartwatch program for heart health in overweight adults
This trial tests if a smartwatch app can help people who are overweight and have slightly high blood pressure, sugar, or cholesterol improve their heart health. If you qualify, you'll use a smartwatch to track your activity and get coaching.
Beijing, Beijing MunicipalityAges 18 years+
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Common questions
- Are there clinical trials for dietary intervention?
- Yes. Clin2 currently lists 119 recruiting dietary intervention 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 dietary intervention 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 dietary intervention 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.