Clinical trials
Diet clinical trials
Below are recruiting diet clinical trials, each written for real people, not researchers. We’re tracking 654 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06935097Enrolling by invitation
Mediterranean diet study for Black and Hispanic men with prostate cancer
This study tests whether a Mediterranean diet can help men with prostate cancer. You'll receive guidance on following this diet to see if it improves your health.
Houston, TexasAges 18 years+ - NCT06923735Enrolling by invitation
Nutrition app pilot for employee health checks
This pilot study tests a nutrition app to help employees manage conditions like high cholesterol, high blood pressure, weight issues, or type 2 diabetes. It is part of your regular occupational health check or dietitian visit.
KuopioAges 18–75 - NCT06845345Enrolling by invitationPhase 4
Can a special diet or pills help liver health?
This study compares two treatments for liver scarring in people with overweight or related health issues. One group follows a special diet with restricted eating times, while the other takes a combination of two medications (naltrexone and bupropion). It aims to see which approach better improves liver fibrosis.
RotterdamAges 18–75 - NCT06831331Enrolling by invitation
Diet and nutrition for newly diagnosed rheumatoid arthritis
This study tests whether a special diet can help manage symptoms of newly diagnosed rheumatoid arthritis. It aims to see if eating certain foods can reduce inflammation and improve your overall health.
GothenburgAges 18–85 - NCT06417151Enrolling by invitation
Nutrition study for healthy Polish children
This study looks at the eating habits and nutrition of healthy Polish children from 5 months to 6 years old. It helps researchers understand what young children eat so they can give better advice on healthy eating.
Warsaw, Masovian VoivodeshipAges 5 months–6 years - 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+ - NCT06222632Enrolling by invitation
MIND diet and forest bathing for heart and mind
This study tests whether a brain-healthy diet (MIND diet) combined with relaxing walks in nature (forest bathing) can help protect your heart and improve your mood. It is for Chinese adults aged 50–75 who have high cholesterol and some anxiety.
Hong KongAges 50–75 - NCT04885959Enrolling by invitation
Study how an Asian diet affects gut bacteria and allergy risk in pregnancy
This study looks at whether eating a traditional Asian diet during pregnancy changes gut bacteria and body chemistry in a way that may lower (or change) a baby’s risk of developing allergies. You would follow the diet during pregnancy and be tracked after delivery.
Kota Bharu, KelantanAges 18–40 - 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+ - NCT04119791Recruiting
Study whether wild rice improves heart health
This study looks at whether eating wild rice can improve cardiovascular (heart and blood vessel) health. It is testing this in generally healthy adults who fit specific health and lifestyle criteria.
Winnipeg, ManitobaAges 20–40 - NCT06848491Recruiting
Smartphone weight loss programs for young adult cancer survivors
This study tests two different smartphone-based programs to help young adult cancer survivors lose weight. Participants are randomly assigned to one of two programs and use an app to track their progress.
Chapel Hill, North CarolinaAges 18–39 - NCT07780708Recruiting
Study of diet quality in older adults
This study looks at the eating habits and diet quality of older adults who use food assistance programs. It involves completing surveys or interviews to help researchers understand how to improve nutrition for this group.
Los Angeles, CaliforniaAges 60 years+ - NCT07687849Recruiting
Workplace diet study for Avon firefighters
This study tests a workplace diet program designed for UK firefighters. It aims to see if the program can improve your health and well-being while on the job.
BristolAges 18 years+ - NCT07132788Recruiting
How PAH affects muscle mass
This study looks at how pulmonary arterial hypertension (PAH) impacts lean muscle mass. It may help researchers understand changes in your body and find new ways to support your health.
Philadelphia, PennsylvaniaAges 18 years+ - NCT07620808Enrolling by invitation
Medically-Tailored Meals and Heart Health Study
This study tests whether personalized meal plans designed by doctors can help people with type 2 diabetes and high blood pressure improve their heart health. You'll receive specially prepared meals for 8 months and answer questions about your health.
New York, New YorkAges 20 years+ - NCT07065591RecruitingEarly Phase 1
Metformin, Exercise, and Diet for Knee Osteoarthritis
This trial tests whether a common diabetes drug (metformin) combined with exercise and a healthy diet can help people with knee osteoarthritis who are overweight.
Hong Kong, Sandy BayAges 40–80 - NCT07036341Recruiting
Recovering after a hip fracture: protein and exercise
This study tests whether extra protein in your diet combined with exercise can help you recover better after a hip fracture, improving your bone and muscle health and quality of life.
ArnhemAges 65 years+ - NCT07121894Recruiting
Ketogenic diet for bipolar depression
This study tests whether a strict low-carbohydrate, high-fat (ketogenic) diet can improve symptoms of depression in people with bipolar disorder. Participants will receive dietary guidance and support to help them follow the diet for several weeks.
Rochester, MinnesotaAges 18–50 - NCT07255807Recruiting
Understanding insulin resistance in healthy adults
This study will look at how insulin resistance works in the body by studying healthy adults. You may help researchers find new ways to understand and treat conditions like diabetes.
CopenhagenAges 25–55 - NCT07202247RecruitingPhase 2
Improving heart health in prostate cancer patients on hormone therapy
This study tests whether combining a time-restricted eating plan, a heart-healthy diet, and a weight-loss medication (GLP-1 receptor agonist) can help improve heart health and weight in men with prostate cancer who are receiving hormone therapy. It aims to reduce the risk of heart problems caused by hormone treatment.
Duarte, CaliforniaAges 30–79 - NCT07225764RecruitingPhase 4
Kidney stone prevention trial for calcium oxalate stone formers
This trial tests a new approach to prevent calcium oxalate kidney stones from coming back. It may help people who have had a procedure to remove stones and have a specific stone type.
New York, New YorkAges 18 years+ - NCT07026175Recruiting
Energy issues in high performance athletes
This study looks at energy problems in well-trained athletes who do weight-bearing exercise like running. It aims to understand why some athletes don't get enough energy, which can affect health and performance.
Fitzroy, VictoriaAges 18–45 - NCT06981247Recruiting
Heart disease prevention for office workers
This study tests ways to help city bank employees in Karachi lower their risk of heart disease and stroke. It focuses on people who sit a lot at work and want to prevent heart problems.
Karachi, SindhAges 20–65 - NCT06668922Recruiting
Diet and irritable bowel syndrome study
This study compares how people with and without irritable bowel syndrome (IBS) react to different foods. It may help find which foods trigger symptoms and which are safe to eat.
Los Angeles, CaliforniaAges 18–75
Hear when a new Diet trial opens
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Common questions
- Are there clinical trials for diet?
- Yes. Clin2 currently lists 654 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.