Clinical trials
Diet clinical trials
Below are recruiting diet clinical trials, each written for real people, not researchers. We’re tracking 651 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07602270Recruiting
How a Ketogenic Diet Affects Alcohol in Your Body
This study tests whether eating a ketogenic diet (very low carb, high fat) changes how your body processes alcohol. Researchers will have you follow a special diet and then measure your body's response to controlled amounts of alcohol in a lab setting.
Philadelphia, PennsylvaniaAges 21–50 - NCT07680452Recruiting
High-fiber diet and short-term fasting for melanoma patients on immunotherapy
This trial tests if a high-fiber diet and occasional short-term fasting can help melanoma patients respond better to immunotherapy. It aims to improve treatment outcomes by changing gut health.
Berlin, State of BerlinAges 18 years+ - NCT03509571Recruiting
Keto diet to support recovery after spinal cord injury
This trial studies whether a ketogenic (keto) diet can improve movement recovery after spinal cord injury. It may help your body’s healing and brain/spinal cord recovery, but you must meet specific health and safety requirements.
Columbus, OhioAges 19–60 - NCT03710928Recruiting
Very low carbohydrate diet versus standard diet for type 1 diabetes
This study compares a very low carbohydrate diet to a regular diet to see how well blood sugar control works for adults with type 1 diabetes. It may help you understand which eating pattern is easier and safer for managing daily glucose with modern diabetes technology.
Boston, MassachusettsAges 18–40 - NCT03991897Recruiting
Keto diet to treat early arm swelling after lymph node removal
This study tests whether a ketogenic (keto) diet can reduce arm lymphedema (swelling) that started within the last year after lymph node removal. It aims to improve swelling by changing the body’s metabolism.
LeuvenAges 18 years+ - NCT04255693Recruiting
Real-life reflux study of diet and behavior changes
This study looks at how following specific diet and behavior changes affects symptoms of acid reflux (heartburn/regurgitation) in everyday life. It may help you understand what lifestyle steps improve reflux and how symptoms change over time.
MoscowAges 18–80 - NCT04274179RecruitingPhase 3
Ketogenic diet for children with new childhood absence seizures
This trial tests whether a high-fat, low-carbohydrate (ketogenic) diet can reduce absence seizures in children who are newly diagnosed. It may help some kids by changing how the brain uses energy, but participation requires close diet monitoring and follow-up.
Baltimore, MarylandAges 3–12 - NCT04274374Recruiting
Gluten-free diet study for people with axial spondyloarthritis
This trial looks at whether eating gluten-free improves quality of life in people with axial spondyloarthritis. You may be asked to follow a gluten-free diet for the study and keep your current symptoms treatment stable.
BordeauxAges 18 years+ - NCT04469296Recruiting
Diet changes before surgery for hormone-receptor breast cancer
This trial tests whether changing your diet before your breast surgery can help people with early, hormone-receptor (ER/PR+) breast cancer. It focuses on patients who have not started treatment yet and want to keep surgery as the main treatment.
Montpellier, HeraultAges 18–80 - NCT04748809Recruiting
Diet trial for rheumatoid arthritis inflammation
This study tests whether an anti-inflammatory diet can help people with rheumatoid arthritis by lowering inflammation and disease activity. You may join if your symptoms are currently mild to moderate and you haven’t recently changed medications or your treatment plan.
La Jolla, CaliforniaAges 18 years+ - NCT04946448Recruiting
Test a Crohn’s diet and biologic medicine combination
This study tests whether combining a specific diet with biologic medicines can reduce active inflammation and symptoms of Crohn’s disease. It may help people who still have active disease in the bowel despite prior care.
LeuvenAges 18–80 - 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 - NCT05590624Recruiting
Mediterranean diet study for men on prostate cancer active surveillance
This trial studies how different controlled versions of a Mediterranean-style diet may affect prostate cancer-related metabolism in men choosing active surveillance. It may help participants understand whether diet changes influence markers linked to prostate cancer activity, while keeping them on a monitored care plan.
Cleveland, OhioAges 18 years+ - NCT05701657Recruiting
Food and lifestyle study using your health and DNA data
This study tests whether changing diet and tracking health habits can help personalize nutrition using your DNA and health information. You would follow a structured diet for about 10–12 weeks and possibly spend short stays where you eat only study-provided foods.
Birmingham, AlabamaAges 18 years+ - NCT05709600Recruiting
Diet study during planned living kidney donation
This trial looks at whether specific diet changes can be safely used for people who are planning a living kidney transplant. It mainly aims to understand how diet might affect people during the donation/transplant process.
CologneAges 18 years+ - NCT05743374Recruiting
Diet changes with micronutrients for ulcerative colitis
This trial looks at whether changing your diet with certain vitamins or minerals (micronutrients) and other diet additives can improve health in people with moderately active ulcerative colitis. You may be asked to follow a specific diet plan, while your symptoms and medication stability are monitored.
Malmö, Skåne CountyAges 18 years+ - NCT05791487Recruiting
Diet plus oral budesonide for mild to moderate ulcerative colitis
This trial studies whether combining a specific diet with an oral steroid called budesonide can calm symptoms in people with mild to moderate ulcerative colitis. It may help reduce inflammation in the colon while building on stable current treatments.
AfulaAges 17–65 - NCT05843318Recruiting
Water intake and weight control for adults 50+
This study tests whether adjusting how much plain drinking water you drink can help with weight control in older adults. You may be asked to follow a structured plan and participate in activities as part of the research.
Blacksburg, VirginiaAges 50 years+ - NCT05849012Recruiting
Low-sulfur diet study for Crohn’s symptoms when disease is quiet
This pilot study tests whether a low-sulfur diet can improve ongoing belly pain and/or diarrhea symptoms in people with Crohn’s disease that looks “quiet” on tests. If you still feel symptoms even though inflammation is not active, this could help by targeting diet-related triggers.
Ann Arbor, MichiganAges 18 years+ - NCT05922137Recruiting
ORIENT diet for brain blood vessel narrowing
This trial studies whether a specific dietary program (the ORIENT diet) can improve brain-related thinking and memory in people with narrowed brain or neck arteries. You may be able to help test whether the diet is safe and beneficial alongside usual care, through repeated assessments over time.
Hangzhou, ZhejiangAges 40 years+ - NCT05938322Recruiting
Ketogenic diet during pelvic cancer radiation treatment
This trial studies whether a very low-carbohydrate (ketogenic) diet can be followed safely while you receive neoadjuvant radiation for locally advanced rectal cancer. It may help researchers understand effects related to nutrition and treatment tolerance during radiation.
RomeAges 18–75 - NCT06067906Recruiting
Weight loss diet after pre-eclampsia in overweight women
This trial tests whether a special diet (either a low-calorie or a 'dissociated' diet) helps women who have had pre-eclampsia lose weight. It may help you reduce future health risks.
Le MansAges 18–45 - NCT06080347Recruiting
Anti-inflammatory diet for knee osteoarthritis
This study tests whether an anti-inflammatory diet can help with knee osteoarthritis. If you have OA in one knee and are open to changing your eating habits, you may be able to join.
San Diego, CaliforniaAges 18 years+ - NCT06098235Recruiting
Test of the Oriental diet for brain health in people at high stroke risk
This trial tests whether a special diet (the Oriental diet) can help protect thinking and memory in people who have several stroke risk factors. It may be a good fit if you are 40 or older and have three or more stroke risk factors, such as high blood pressure, diabetes, or being overweight.
Hangzhou, ZhejiangAges 40 years+
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Common questions
- Are there clinical trials for diet?
- Yes. Clin2 currently lists 651 recruiting diet 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 diet 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 diet 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.