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
- 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+ - NCT04943926Recruiting
Diet changes to help put type 2 diabetes into remission
This study tests whether specific dietary strategies can help people with type 2 diabetes reach remission (better blood sugar without ongoing high medication needs). You may be a good candidate if your diabetes is relatively recent, your weight is above a certain threshold, and your heart and other health conditions are stable.
Bergen, VestlandAges 24–70 - NCT04974593RecruitingPhase 3
Test breath testing to guide a lactose-free diet in IBS
This trial studies whether a breath test (hydrogen/methane lactose testing) can predict who with IBS will improve on a lactose-free diet. If you have moderate-to-severe IBS and regularly eat lactose-containing foods, the test result may help tailor your diet approach.
Jette, Brussels CapitalAges 18–75 - NCT05097872Recruiting
Diet trial for IBS with non-constipation symptoms
This study tests whether a specific diet plan can improve symptoms in people with IBS that is not constipation (IBS-D or IBS-M). If you qualify, you’ll complete symptom questionnaires and follow the study diet for the trial period to see if symptoms improve.
LeuvenAges 18–70 - NCT05119868Recruiting
Mediterranean diet in pregnancy to prevent baby allergies
This trial studies whether following a Mediterranean-style eating pattern during pregnancy can lower the chance that a child develops allergies. It may help families who already have a higher allergy risk, by changing diet during early pregnancy.
NaplesAges 20–35 - NCT05120752RecruitingPhase 3
Low FODMAP diet trial for IBS without lactose intolerance
This trial tests whether eating a low-FODMAP diet can reduce IBS symptoms in people who do not have lactose intolerance. It aims to improve moderate-to-severe IBS symptoms by changing what kinds of carbohydrates you eat.
Jette, Brussels CapitalAges 18–75 - NCT05197309Recruiting
Metabolic diet to help prevent relapse in anorexia
This study tests whether a specific diet can help people with anorexia nervosa stay well and avoid relapse after weight restoration. It focuses on “metabolic” (energy and blood sugar-related) effects, checked with blood work and regular visits.
New York, New YorkAges 18–40 - NCT05275608Recruiting
Low-carb diet effects in people with metabolic syndrome
This trial studies whether a very low-calorie, low-carb diet (VLCKD) can improve metabolic health in adults with metabolic syndrome, fatty liver, and type 2 diabetes. It may help lower blood sugar and improve related health markers if you fit their specific diabetes and liver/kidney criteria.
Novara, ItalyAges 25–65 - NCT05309395RecruitingPhase 3
Food prescriptions to help Latino families eat affordably
This trial tests whether giving free/covered “food prescriptions” helps multigenerational Latino households lose weight by improving diet within a budget. It may help families who want to eat healthier without worrying as much about grocery costs.
Pasadena, CaliforniaAges 2 years+ - NCT05417568Recruiting
Testing how oxalate responses differ in kidney stone patients
This study looks at how the body reacts to oxalate in people with calcium oxalate kidney stones and in people without kidney stones. It may help researchers understand why some people form stones and how to better prevent them.
Birmingham, AlabamaAges 18–60 - NCT05439226Recruiting
Diet plan targeting liver fat for type 2 diabetes
This study tests whether a Chinese medical nutrition therapy diet can reduce liver fat and help manage type 2 diabetes in people who also have fatty liver. You may be asked to follow a specific eating plan and keep your diabetes care stable during the study.
Yichang, HubeiAges 18–75 - NCT05477212Recruiting
Study gut leakiness in obesity and fatty liver with a ketogenic diet
This study looks at “gut permeability,” sometimes called intestinal leakiness, in people with obesity and fatty liver disease. It tests whether a ketogenic (very low-carb) diet changes gut leakiness and fatty liver measurements.
Castellana Grotte, BARIAges 18–65 - NCT05559463Recruiting
Anti-inflammatory diet for knee arthritis pain relief
This trial studies whether an anti-inflammatory eating plan (the “ITIS diet”) can improve symptoms in people with knee osteoarthritis. It is meant to see if changing what you eat can help reduce pain and improve function.
La Jolla, CaliforniaAges 18 years+ - NCT05640843Recruiting
Plant-based diet study for MGUS or smoldering myeloma
This trial tests whether a whole-food, plant-based eating pattern—plus supplements or placebo—can improve health outcomes in people with MGUS or smoldering multiple myeloma. You may be asked to follow specific recipes and stop certain supplements, so it helps to confirm you can stick with the plan.
Atlanta, GeorgiaAges 18 years+ - NCT05667610Recruiting
Immune and gut diet study for peanut-allergic children
This trial studies whether an immune-supportive diet can improve gut health (gut permeability) in children with confirmed peanut or tree-nut allergy. If you join, the researchers will use allergy testing and gut-related diet approaches to see whether symptoms and gut measures change.
AmsterdamAges 3–17 - NCT05706155Recruiting
Switching some animal protein to plant protein for Type 2 diabetes
This study tests whether replacing part of your animal protein with plant-based protein can improve Type 2 diabetes control. It may help your blood sugar and weight management without changing everything about your diet.
Porto Alegre, Rio Grande do SulAges 18–65 - NCT05708716Recruiting
Diet and brain training for people after blood cancer
This study tests whether a combined diet plan and structured brain (cognitive) training can improve thinking and memory in people who have had blood cancer. It may help survivors who already have mild-to-moderate thinking problems.
Birmingham, AlabamaAges 21 years+ - NCT05723445Recruiting
Low glycemic diet test for diabetes and body changes in CF
This trial studies whether a low glycemic load (a specific way of choosing carbohydrates) improves blood sugar control and body composition in adults with cystic fibrosis–related diabetes. It may help reduce blood sugar problems and support healthier weight and body measurements.
Boston, MassachusettsAges 18–70 - NCT05766774Recruiting
Diet study for adults with cystic fibrosis and high sugar intake
This trial studies whether changing eating habits—especially added sugar intake—affects health in adults with cystic fibrosis. It may help by testing a diet approach aimed at better outcomes related to metabolism and overall health.
Atlanta, GeorgiaAges 18 years+ - NCT05785884Recruiting
Diet program to help knee osteoarthritis pain
This trial studies whether different diet approaches can reduce knee pain in people with knee osteoarthritis who have certain eating patterns. It may help by changing diet-related factors that can affect inflammation and pain.
Birmingham, AlabamaAges 40–75 - 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 - NCT05832528Recruiting
Low FODMAP diet for indigestion after meals
This study tests whether a low FODMAP diet can reduce symptoms of functional indigestion or post-meal discomfort. It’s mainly for people whose symptoms are clearly linked to eating and who haven’t changed diets recently.
Leuven, Vlaams-BrabantAges 18–70 - NCT05884723Recruiting
Ketogenic diet before liver surgery for fatty liver
This trial tests whether a ketogenic (very low-carb) diet before liver surgery can reduce fat in the liver. It is aimed at people with colorectal liver metastases who already have fatty liver seen on scans or biopsy.
London, OntarioAges 18 years+ - NCT05885828Recruiting
Precision nutrition study for type 2 diabetes in Hangzhou
This study tests a “precision” nutrition approach for people with type 2 diabetes. It aims to see whether personalized diet guidance is safe and helpful, compared with your current routine.
Hangzhou, ZhejiangAges 35–75
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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.