Clinical trials
Dietary Intervention clinical trials
Below are recruiting dietary intervention clinical trials, each written for real people, not researchers. We’re tracking 118 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07315659Recruiting
Time-restricted eating for weight loss maintenance in obesity
This study tests whether eating only during a set window of hours each day can help people with obesity keep weight off after losing it. You would follow a specific meal schedule and get all your food provided for a period.
Granada, GranadaAges 18–70 - NCT07263529Recruiting
Iron pills for women with low iron but not anemic
This trial tests whether oral iron therapy can prevent anemia in women who have low iron stores but normal blood counts. It aims to find out if taking iron helps improve energy and overall health.
Kâğıthane, IstanbulAges 18–55 - NCT06885125Recruiting
Diet Study to Improve Fertility in Women with Endometriosis
This study tests if a special diet can help women with endometriosis who are having trouble getting pregnant and are doing IVF. It aims to improve chances of success by changing what you eat.
MilanAges 18–39 - NCT05384873Recruiting
Immunonutrition to improve immunotherapy in metastatic lung cancer
This trial studies whether adding special nutrition (oral immunonutrition supplements) can help immunotherapy work better in people with metastatic non-small cell lung cancer. Participants receive immunotherapy, with or without chemotherapy, and must be able to take oral supplements.
PaviaAges 18 years+ - NCT07120334Recruiting
Mobile health app for stroke survivors with prediabetes or diabetes
This trial tests a mobile app that helps people recovering from a stroke who also have prediabetes or type 2 diabetes improve their diet and health. You will use the app for about 12 weeks, and it may help you manage your blood sugar and prevent future strokes.
Honolulu, HawaiiAges 30–65 - NCT07117201Enrolling by invitation
Produce prescription for chronic disease management
This trial gives free fruits and vegetables to help manage chronic conditions like high blood pressure, diabetes, and obesity. You'll attend team visits to learn about healthy eating and track your progress.
Richmond, VirginiaAges 18 years+ - NCT07105670Recruiting
Replacing high-protein foods in chronic kidney disease
This study looks at how replacing high-protein foods affects people with chronic kidney disease. If you join, you will eat a carefully controlled diet to help researchers understand if changing your protein intake can improve your kidney health.
West Lafayette, IndianaAges 40–70 - NCT07091864Recruiting
Glucose monitoring for brain tumor patients
This study tests whether using a continuous glucose monitor (a small device that tracks blood sugar levels) can help manage high blood sugar in people newly diagnosed with glioblastoma, a type of brain cancer. It aims to see if this monitoring can improve overall health during treatment.
Phoenix, ArizonaAges 18 years+ - NCT06429124Recruiting
Time-restricted eating for mild cognitive impairment
This trial tests whether a time-restricted eating schedule (eating only during certain hours of the day) can help people with mild cognitive impairment (MCI) or early Alzheimer’s disease. It is a lifestyle study that can be done mostly from home with a computer or smartphone.
Phoenix, ArizonaAges 55–89 - NCT06891911Recruiting
Free healthy groceries to help lower blood pressure
This study gives people with high blood pressure free healthy groceries for 4 weeks to see if eating better can lower their blood pressure. It might help you get your blood pressure into a healthier range.
Boston, MassachusettsAges 18 years+ - NCT06858280RecruitingPhase 3
Patiromer and diet for potassium in dialysis patients
This trial tests if a medication called patiromer, combined with a low-potassium diet, can help manage potassium levels in people on chronic dialysis. The goal is to improve quality of life by allowing a more flexible diet.
Bergamo, BGAges 18 years+ - NCT06809166RecruitingPhase 4
Contrave for weight loss in adults with obesity
This study tests whether a weight loss medication called Contrave can help adults with obesity lose weight by changing how their body uses energy and handles food. If you qualify, you will take Contrave and be monitored for several months.
Ottawa, OntarioAges 18–64 - NCT06571877Enrolling by invitation
Bed rest study: how energy density affects eating
This study looks at how the amount of energy in food affects how much people eat when they are on bed rest. Healthy volunteers will stay in bed for a period of time, and researchers will measure their food intake to understand the relationship between energy density and appetite.
Tübingen, Baden-WurttembergAges 18–99 - NCT06548789RecruitingPhase 2
Diet and immunotherapy before surgery for melanoma
This study tests whether adding a special diet (with prebiotic foods) to standard immunotherapy before surgery helps your body fight melanoma better. It may improve how well the treatment works and reduce side effects.
Houston, TexasAges 18 years+ - NCT06464497Recruiting
Whole foods for teens with obesity pilot study
This study tests whether replacing processed foods with whole foods (like fruits, vegetables, and whole grains) for 8 weeks can help reduce body fat in teens with obesity. Both the teen and a parent or caregiver will learn to prepare and eat healthier meals together.
Nashville, TennesseeAges 10 years+ - NCT06475807Recruiting
Dietary changes for people on immunotherapy for cancer
This study tests whether a change in diet can help people with early-stage melanoma or lung cancer who are receiving immunotherapy (a type of treatment that helps your immune system fight cancer). You will be asked to follow a diet, give blood and stool samples, and complete questionnaires to see how the diet affects your body and treatment.
Pittsburgh, PennsylvaniaAges 18 years+ - NCT06399432Recruiting
Mediterranean diet for psoriasis patients on biologic therapy
This study tests whether adding a Mediterranean diet to your psoriasis treatment can improve your skin. You will be asked to follow a heart-healthy diet for several months while taking a new biologic medicine.
Cleveland, OhioAges 18–94 - NCT06320782Enrolling by invitation
Diet and belly fat study for overweight adults
This study tests how different diets affect belly fat, thigh muscle, and heart health in people who are overweight. It might help you find a way to eat that improves your health.
Recife, PernambucoAges 20 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+ - NCT05774652Recruiting
Teen study following mothers from an earlier pregnancy project
This study follows teenagers whose mothers took part in an earlier lifestyle-in-pregnancy study (started in 2007–2010). It may help researchers understand how that earlier study relates to teen health and development.
OdenseAges 13–65 - NCT05356182Recruiting
Low-protein meals during immunotherapy for cancer patients
This trial tests whether eating low-protein meals helps people with metastatic cancer feel better or tolerate immunotherapy (immune checkpoint inhibitors). It’s mainly a pilot/feasibility study, meaning the goal is to see if the diet is safe and doable during treatment.
Buffalo, New YorkAges 18 years+ - NCT04959474Recruiting
Pre-surgery radiation study with or without calorie restriction
This trial looks at whether a planned calorie-reduction diet before surgery can change how early breast cancer responds to a short course of radiation. It may help people understand if diet could improve outcomes alongside standard pre-surgery treatment.
Philadelphia, PennsylvaniaAges 40 years+ - NCT04672863Recruiting
Mediterranean diet after a first liver transplant
This study tests whether eating a Mediterranean-style diet after a first liver transplant is safe and helpful for recovery or health. It targets adults who are able to follow a nutrition plan and do not have certain complications or conditions that could interfere with diet changes.
Rochester, MinnesotaAges 18 years+ - NCT04599010Recruiting
Body composition and feeding help for large-for-birth babies
This study looks at how body composition may affect feeding in babies who were “large for gestational age” and have difficulty feeding by mouth. Results may help doctors better identify which babies need extra feeding support and why feeding difficulties happen.
Orlando, FloridaAges 1 week–2 months
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Common questions
- Are there clinical trials for dietary intervention?
- Yes. Clin2 currently lists 118 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.