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
- NCT06174389Recruiting
Weight loss study: diet, appetite and body changes
This study looks at how diet, appetite, and body changes work together during weight loss. It's designed for people with a BMI of 30 to 50 who want to lose weight and are not taking certain medications or have certain health conditions.
Seattle, WashingtonAges 18–60 - NCT06206616Recruiting
Liver fat in children with celiac disease
This study looks at whether children with celiac disease have fat buildup in the liver. It aims to help doctors understand and manage this condition better.
Palermo, PalermoAges 1–14 - NCT06211556Recruiting
Reducing liver fat in type 2 diabetes
This study tests whether reducing liver fat can improve health in people with type 2 diabetes. It looks at the effects of a specific medication combined with exercise, tailored for those who are not very active.
Copenhagen, Capital RegionAges 30–70 - NCT06216678Recruiting
Can healthy diets with plant oils improve heart health?
This study tests if adding plant oils to a healthy diet can improve cholesterol and other heart health markers in people with moderately high cholesterol. It involves following a specific meal plan and having your health monitored over several weeks.
University Park, PennsylvaniaAges 25–60 - NCT06221852Recruiting
Ketogenic diet for first episode bipolar disorder
This study tests whether a special high-fat, low-carbohydrate diet (ketogenic diet) can help people who have recently been diagnosed with bipolar disorder. It may improve mood stability and overall brain health.
Belmont, MassachusettsAges 18–45 - NCT06236932Recruiting
Infection risk in obesity study
This study looks at how obesity and related conditions affect your body's ability to fight infections. It may help find ways to prevent illness in people with obesity.
NaplesAges 18–65 - NCT06239363Recruiting
Dietary salicylates and preeclampsia study
This trial looks at how salicylates (compounds in foods like fruits and spices) affect preeclampsia, a pregnancy complication with high blood pressure. It compares healthy pregnant women to those with preeclampsia to understand if diet plays a role.
PoznanAges 18–45 - NCT06255886RecruitingPhase 4
Treatment for acid reflux in babies under 1 year
This trial tests a treatment for babies under 1 year old who have frequent and troublesome reflux (GERD). It aims to find a safe and effective way to reduce symptoms like crying, feeding problems, and breathing pauses.
Aabenraa, Region SyddanmarkAges 1 month–1 year - NCT06273644Recruiting
Carbohydrate-rich diet for acute intermittent porphyria
This trial tests whether a diet high in carbohydrates can help treat acute intermittent porphyria (AIP), a condition that can cause attacks of pain and other symptoms. If you have AIP, this study wants to see if eating more carbs can prevent or manage attacks.
Bodø, NordlandAges 18 years+ - NCT06298253Recruiting
Traffic light system for healthier food at pantries
This study tests whether a traffic light nutrition ranking system helps food pantry clients choose healthier options. If you visit a participating pantry, you may be asked to complete surveys about your experience.
Boston, MassachusettsAges 18–90 - NCT06309563Recruiting
Essential amino acid diet for severe obesity
This study tests whether replacing some foods with essential amino acids (protein building blocks) can improve metabolism in people with severe obesity. It aims to find a non-surgical way to boost weight loss.
Oggebbio, VerbaniaAges 45–65 - NCT06313684Recruiting
Hybrid cardiac rehab for heart failure patients
This study tests a hybrid cardiac rehab program (both at the clinic and at home) for people with heart failure. It combines supervised exercise sessions with remote support to help improve your heart health and daily function.
SantiagoAges 18 years+ - NCT06323538Recruiting
Plant-based diets and health (COPLANT)
This study looks at how different plant-based diets affect your health. Researchers will collect information through questionnaires and blood samples to understand the benefits of eating more plants.
ViennaAges 18–69 - NCT06329349Recruiting
Metabolic flexibility and lifestyle change study
This study looks at how your body's metabolism responds to lifestyle changes like diet or exercise. If you are an adult with obesity (BMI over 30) and no major health issues, you may be able to join a program that helps you understand your body's energy use.
PragueAges 25–45 - NCT06329544Recruiting
Study of a high-fructose diet and gut health
This trial tests how a high-fructose diet affects your gut bacteria and overall metabolic health. It is for people who already know they don't absorb fructose well (fructose malabsorbers) and want to understand how this sugar impacts their body.
New York, New YorkAges 25–45 - NCT06332560Recruiting
Endometriosis pain and lifestyle
This study looks at how diet and lifestyle changes, including cognitive behavioral therapy (a type of talk therapy), might help reduce pain from endometriosis. You would follow a special diet and attend therapy sessions while researchers track your symptoms.
's-HertogenboschAges 17 years+ - NCT06336902RecruitingPhase 1
Immunotherapy plus fasting diet and vitamin C for KRAS-mutated colorectal cancer
This trial tests a combination of two immunotherapy drugs (botensilimab and balstilimab) plus a fasting-mimicking diet and high-dose vitamin C for people with a specific type of advanced colorectal cancer (KRAS-mutated). It aims to see if this approach can help when standard treatments have stopped working.
Fullerton, CaliforniaAges 18 years+ - NCT06338631Recruiting
Early kidney check in people with excess weight
This study looks for early signs of kidney problems in people with excess weight, even if they are otherwise healthy. It aims to understand how weight affects kidneys before any disease develops.
MilanAges 18–60 - NCT06339840Recruiting
Lifestyle change for weight and fertility in obese men
This study tests whether a lifestyle program (diet and exercise) can help men with obesity lose weight and improve their chances of fathering a child through fertility treatment. You and your partner can join if you are an obese male, your partner has a healthy weight and regular periods, and you are both planning treatment at our center.
Zhengzhou, HenanAges 22–40 - NCT06349590RecruitingPhase 1/Phase 2
Diet before colon cancer surgery to reduce recurrence
This trial tests whether a specific diet before colon cancer surgery can change the bacteria in your gut to help prevent the cancer from coming back or spreading. Patients who are eligible will follow the diet for a short time before their operation.
Chicago, IllinoisAges 18 years+ - NCT06356220Recruiting
Gluten-free nutrition for kids with celiac disease
This study helps children with newly diagnosed celiac disease eat a healthier gluten-free diet by reducing processed foods. It aims to improve nutrition and overall health.
Boston, MassachusettsAges 2–18 - NCT06361550Recruiting
Nutrition status and diet advice for older adults
This program evaluates your nutritional status and gives you personal dietary advice as part of an active aging study. It may help you eat healthier to support your overall well-being in retirement.
Salamanca, SalamancaAges 60 years+ - NCT06362837Recruiting
Nutrition, hygiene, and sexual health program for families
This trial tests a program called REACTS-IN to improve nutrition, hygiene, and sexual/reproductive health. It is designed for mothers, fathers, adolescents, and young children living in communities in Kenya.
DhakaAges Any age - NCT06382298Recruiting
Cottonseed oil vs. similar oil for heart health
This study compares the effects of cottonseed oil versus a similar oil on heart health. It is for people with high cholesterol or who are overweight and want to see if changing cooking oils can improve their cholesterol levels.
Athens, GeorgiaAges 25–75
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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.