Clinical trials
Diet clinical trials
Below are recruiting diet clinical trials, each written for real people, not researchers. We’re tracking 626 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06669819Recruiting
Vegan diet and supplements during pregnancy and childhood
This study looks at how a vegan diet, with or without supplements, affects pregnancy and early childhood. It includes vegan parents and their children up to age 5, as well as medical experts who advise vegan families.
Vienna, AustriaAges 18 years+ - NCT06906445Recruiting
Fecal transplant and diet changes for ulcerative colitis
This trial tests if a fecal transplant combined with dietary changes can help control symptoms in people with active ulcerative colitis who haven't responded well to standard treatments or advanced therapies.
Kochi, KeralaAges 18–75 - NCT07233148Recruiting
ALS, MND, or PLS registry study
This observational study creates a registry for people with ALS, MND, or PLS. It helps researchers better understand these conditions and find possible treatments.
Park City, UtahAges 18–110 - NCT06890637Recruiting
Fecal transplant and diet change for Crohn's disease
This trial tests whether a fecal transplant (putting healthy bacteria into your gut) combined with dietary changes can help control active Crohn's disease. It is for people who need stronger treatments or have stopped responding to their current therapy.
Kochi, KeralaAges 18–75 - NCT06895252Recruiting
Fecal transplant and diet for new ulcerative colitis
This study tests whether a combination of fecal transplant (transferring healthy stool into your gut) and dietary changes can help control inflammation in people recently diagnosed with active ulcerative colitis. It may offer a new treatment option before starting stronger medications.
Kochi, KeralaAges 18–75 - NCT06890650Recruiting
Fecal transplant and diet for new Crohn's disease
This study tests whether a combination of fecal transplant (transferring healthy bacteria from a donor) and dietary changes can help control disease activity in people newly diagnosed with Crohn's. It is for those with mild to moderate symptoms who have not yet taken any Crohn's medications.
Kochi, KeralaAges 18–75 - NCT07229482Recruiting
Potatoes and your health: a 14-week food study
This study tests whether eating potatoes (as part of a provided diet) can improve blood sugar and heart health markers – possibly lowering your risk for type 2 diabetes.
Blacksburg, VirginiaAges 50–70 - NCT07223255Recruiting
Mediterranean diet study for children with cystic fibrosis
This study tests whether a Mediterranean-style diet can improve gastrointestinal health in children with cystic fibrosis. It requires families to follow the diet for 6 months and attend regular clinic visits.
Lebanon, New HampshireAges 3–18 - NCT06912828Recruiting
Genes and diet for IBS
This trial is studying whether your genes can predict how well a special diet will help your IBS symptoms. If you have moderate to severe IBS and no other diet-related conditions, you may be able to take part.
AthensAges 18–65 - NCT04735835Recruiting
Personalized diet testing using ZOE app and blood samples
This trial studies how different food compositions affect your body, using the ZOE testing program plus meals you eat and blood samples you collect. It may help you learn more about what foods work best for you, especially if you have a long-term health condition.
Needham, MassachusettsAges 18 years+ - NCT05899166Recruiting
Diet study to improve blood sugar control in new diabetes
This study looks at how carbohydrate intake may affect how well insulin-producing cells work and how stable your blood sugar becomes in children with newly diagnosed type 1 diabetes. It may help families learn dietary steps that improve glucose control early on.
Boston, MassachusettsAges 5–12 - NCT06943170Recruiting
Aerobic exercise with or without a low calorie diet for teens with Down syndrome
This trial studies how aerobic exercise, alone or combined with a low calorie diet, affects body fat and weight in children with Down syndrome who are overweight or obese. The goal is to find a safe, effective way to help manage weight.
Lahore, Punjab ProvinceAges 8–16 - NCT07187739Recruiting
Mediterranean diet for Parkinson's with deep brain stimulation
This study tests whether a Mediterranean diet can improve nutrition in people with Parkinson's disease who have had deep brain stimulation surgery. It may help you maintain better nutrition and overall health.
Ankara, AnkaraAges 45–64 - 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+ - NCT07176078Recruiting
Osteopathic care plus low-FODMAP diet for fibromyalgia and IBS
This trial tests whether adding osteopathic care (a hands-on therapy) to a low-FODMAP diet helps people with both fibromyalgia and irritable bowel syndrome feel better. It compares the diet alone to the diet plus osteopathic sessions.
Brussels, Brussels CapitalAges 18 years+ - NCT07165470Recruiting
Pre-packaged low-residue diet for IBD colonoscopy prep
This study tests whether a ready-to-eat low-residue diet (a diet that leaves very little waste in your colon) helps people with IBD prepare for a colonoscopy. It may make the prep easier and more effective than standard bowel-cleansing drinks.
Shanghai, Shanghai MunicipalityAges 18–75 - NCT07168499Recruiting
Diet, stress, and advanced therapy for Crohn's and colitis
This study tests whether adding a diet and stress management program to standard advanced therapy helps people with active Crohn's disease or ulcerative colitis feel better. It combines lifestyle changes with new medications to improve treatment outcomes.
Boston, MassachusettsAges 18 years+ - NCT07166874Recruiting
Gluten-free diet for ankylosing spondylitis
This study looks at how a gluten-free diet affects people with ankylosing spondylitis (a type of arthritis that mainly affects the spine). You would eat no gluten (found in wheat, barley, and rye) for a period of time to see if it helps reduce symptoms.
IstanbulAges 18–64 - 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 - NCT07159659Recruiting
Medium chain triglyceride diet after lung surgery
This trial tests whether a special diet with medium chain triglycerides (a type of fat) after lung surgery can help you go home sooner. If you are having a lobectomy (removal of a lung lobe) and are generally healthy, you may be able to join.
ShatinAges 18–80 - NCT07151105Recruiting
Vitamin C for gut health in adults with obesity
This trial tests whether taking vitamin C supplements helps improve gut barrier function in adults with obesity. You'll follow a low-fruit-and-vegetable diet for two, two-week periods.
Columbus, OhioAges 18–50 - NCT07115862Recruiting
Pomegranate juice study for mild to moderate ulcerative colitis
This trial tests if drinking pomegranate juice can help people with mild to moderate ulcerative colitis. You may be eligible if your diet is low in fruits and vegetables and you are on stable medications.
Los Angeles, CaliforniaAges 18 years+ - NCT07086833Recruiting
Diet, gut bacteria, and colon cancer risk study
This study looks at how diet and gut bacteria affect colon cancer risk in Black and Non-Hispanic White adults aged 45 to 75 who are at higher risk. You would donate mouth and stool samples and complete food recalls.
Indianapolis, IndianaAges 45–75 - NCT07083336Recruiting
Diet study for type 2 diabetes with fatty liver disease
This trial tests a specific medical nutrition therapy diet to see if it can reduce liver fat and improve blood sugar control in people with type 2 diabetes and nonalcoholic fatty liver disease. It may help you manage both conditions with a dietary approach.
Yichang, HubeiAges 18 years+
Hear when a new Diet trial opens
We’ll email you when one opens — at most once a week, no account needed, unsubscribe anytime.
Common questions
- Are there clinical trials for diet?
- Yes. Clin2 currently lists 626 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.