Clinical trials
Diet clinical trials
Below are recruiting diet clinical trials, each written for real people, not researchers. We’re tracking 627 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06273631Recruiting
Carbohydrate intake patterns for blood sugar control in type 1 diabetes
This study compares different ways of eating carbohydrates to see which pattern helps people with type 1 diabetes manage their blood sugar better. If you have type 1 diabetes and are on insulin, this trial might help you find an eating approach that improves your glucose control.
Nanjing, JiangsuAges 18–70 - NCT06210009Recruiting
Can a heart-healthy diet help prevent kidney stones?
This study tests whether a special diet (called DASH, similar to one for high blood pressure) can reduce substances in urine that cause kidney stones. If you have had kidney stones and live in the Birmingham area, this diet might help prevent future stones.
Birmingham, AlabamaAges 19–89 - NCT06207136Recruiting
Diet and Gut Bacteria in Parkinson's
This study looks at how diet and the bacteria in your gut (microbiome) affect Parkinson's symptoms. You'll work with a coach and take cooking classes to see if changing what you eat can help you feel better.
Vancouver, British ColumbiaAges 40–80 - 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+ - NCT05832086RecruitingPhase 2
Fasting-mimicking diet to improve prostate cancer and metabolism
This trial tests whether an intermittent, fasting-like diet can help control metastatic prostate cancer and improve metabolic health in men on hormone therapy. Participants follow a specific diet plan and are monitored by the study team.
Duarte, CaliforniaAges Any age - NCT05799768Enrolling by invitation
Ketogenic diet for rheumatoid arthritis symptoms and inflammation
This study tests whether a very low-carbohydrate, ketogenic diet can improve rheumatoid arthritis (RA). It’s designed for people whose RA treatment is already stable and who are not currently using a keto diet or certain medicines.
Oklahoma City, OklahomaAges 18–65 - 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+ - 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+ - 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+ - 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+ - 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+ - NCT05411549Enrolling by invitation
Mediterranean diet program for people with endometriosis
This trial tests whether following a Mediterranean-style diet is doable and helpful for people with endometriosis. It’s a feasibility study, meaning the goal is to see if the diet plan can be followed and how people respond.
Hamilton, OntarioAges 18–45 - 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+ - 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 - 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 - NCT04101188Recruiting
Study how extra potassium affects blood vessels
This study looks at how eating more potassium may protect blood vessels in healthy people. You may be eligible if you have normal blood pressure and a normal heart rhythm test, and you do not have certain health conditions.
Newark, DelawareAges 18–45 - NCT03851458Enrolling by invitationPhase 2
Spanish coaching for healthier food choices for weight
This Phase 2 study tests a program (with food guidance, text messages, and check-ins) to help people eat more healthfully. It is designed for adults who are overweight or obese and can speak Spanish (with some separate tracks for different groups).
New York, New YorkAges 18 years+ - NCT07878104Recruiting
Ketogenic diet for hard-to-control seizures in adults
This study looks at whether a special high-fat, low-carbohydrate diet can help reduce seizures in adults whose epilepsy has not improved with two or more medications. It is an observational study, meaning participants follow the diet as part of their regular care and the research team tracks their progress.
StockholmAges 18 years+ - NCT05972317Recruiting
Personalized diet vs low FODMAP diet for irritable bowel syndrome
This study compares two diet plans for people with irritable bowel syndrome (IBS): a personalized diet tailored to your specific triggers and the low FODMAP diet, which avoids certain carbohydrates that can cause gas and bloating. The goal is to see which approach works better for relieving symptoms.
RehovotAges 18–70 - 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+ - NCT05973500Recruiting
Mediterranean diet study for inflammatory bowel disease
This trial studies whether eating a Mediterranean-style diet can improve inflammatory bowel disease (including mild to moderate Crohn’s). It may help by testing changes in gut inflammation measured by your symptoms and stool tests.
San Diego, CaliforniaAges 18 years+ - 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+ - NCT06214598Recruiting
Anti-inflammatory diet for breast cancer patients on hormone therapy
This study tests whether a special anti-inflammatory diet can help reduce side effects in breast cancer survivors who are taking aromatase inhibitors after menopause. You would be randomly assigned to either follow the diet for 6 months or continue your usual diet, and your health will be monitored.
BelgradeAges 45–70 - NCT06424847Recruiting
Sleep and lifestyle changes for inactive adults
This study tests whether a program that combines sleep tips and lifestyle changes can help adults who don't exercise much. It's for people who want to improve their sleep and activity habits.
GrenobleAges 18–80
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Common questions
- Are there clinical trials for diet?
- Yes. Clin2 currently lists 627 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.