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
- 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 - NCT07394114RecruitingPhase 3
Study of a new medicine for type 2 diabetes not controlled by diet and exercise
This trial tests a new medicine called HDM1005 for people with type 2 diabetes who haven't been helped enough by diet and exercise alone, and who haven't taken any diabetes medication in the last 12 weeks. It aims to see if the medicine can help lower blood sugar levels safely.
BeijingAges 18–75 - NCT07388121Recruiting
Vitamin C and gut health in healthy adults
This trial tests whether taking vitamin C supplements changes the bacteria in your gut and how well your gut works. If you are a healthy adult, you may be able to join.
GlasgowAges 18–65 - NCT07382999Recruiting
Gluten-free diet and thinking skills in teens with celiac disease
This study looks at how well teenagers with celiac disease can do two things at once, like thinking and moving, and whether sticking to a gluten-free diet helps. You will be compared to healthy teens to see if there are differences.
MalatyaAges 8–18 - NCT07375238Recruiting
Gazpacho daily for better sperm health
This study tests whether drinking gazpacho daily can improve sperm quality and reduce stress in the body. It may help men with low or abnormal sperm counts.
Madrid, MadridAges 18–45 - NCT07378306RecruitingPhase 2
Fasting-mimicking diet with chemo-immunotherapy for triple-negative breast cancer
This trial tests whether adding a special low-calorie diet (called a fasting-mimicking diet) to standard chemotherapy and immunotherapy can help treat triple-negative breast cancer before surgery. It aims to see if this combination makes the treatment work better.
Guangzhou, GuangdongAges 18–70 - NCT07374042RecruitingPhase 3
A supplement to protect muscle in advanced kidney disease
This trial tests whether a special diet supplement (Ketoanalogue) can help protect your muscles while you follow a moderate protein diet. It is for people with chronic kidney disease stage 4 or 5 who are not on dialysis or have not had a kidney transplant.
Clermont-FerrandAges 18–100 - NCT05942287Recruiting
Weight and weight loss study in heart failure with weak pumping
This study looks at how obesity and weight loss affect people living with heart failure where the heart pumping strength is reduced. It uses heart imaging (MRI) to measure the heart and may help clarify what weight changes do for symptoms and heart function.
Jersey, JerseyAges 18–85 - NCT06764563Recruiting
Mediterranean diet study for multiple sclerosis quality of life
This trial tests whether following a Mediterranean diet can improve quality of life for people with multiple sclerosis (MS). It aims to find a dietary approach that may help manage symptoms and improve well-being.
Tel Aviv, IsraelAges 18–70 - NCT07364045Recruiting
Diet and diabetes remission in overweight adults
This study tests whether a special diet can help reverse type 2 diabetes or prediabetes in people who are overweight. It compares people with type 2 diabetes, prediabetes, and healthy controls to see how weight loss affects fat in the pancreas.
EdinburghAges 45–79 - NCT07365007Recruiting
Diet study to improve nerve pain after chemo
This study tests a diet program delivered online to help reduce nerve damage symptoms like numbness and tingling caused by chemotherapy. It is for cancer survivors who completed treatment and still have these symptoms.
Ann Arbor, MichiganAges 18 years+ - NCT07367854Recruiting
Diet and muscle building in active women
This trial tests how different foods or diet patterns work together to help your body build more muscle protein. It’s designed for active, pre-menopausal women who are not pregnant and have regular cycles.
Urbana, IllinoisAges 19–40 - NCT04970446RecruitingPhase 1/Phase 2
Fecal transplant to restore gut microbes in Crohn’s
This Phase 1/2 study tests whether a fecal microbiome transplant (FMT) can reduce active inflammation in people with Crohn’s disease. It’s designed for people who currently have signs of active bowel inflammation and can attend regular procedure visits.
Melbourne, VictoriaAges 18–70 - NCT07361640Recruiting
E-health lifestyle program for type 2 diabetes
This trial tests a smartphone-based lifestyle program to help people with newly diagnosed type 2 diabetes lose weight and improve blood sugar control. You'll get a digital program with coaching and support, instead of usual care alone.
OsloAges 18 years+ - NCT07358390Enrolling by invitation
Potatoes to improve diet in young children
This study tests whether adding potatoes to meals can help young children eat better. It involves children aged 2-6 in Head Start classrooms, their parents, and teachers.
University Park, PennsylvaniaAges 2 years+ - NCT06849817Recruiting
Protein and exercise for postmenopausal women's health
This study tests whether adding more protein to your diet along with regular exercise can improve health and well-being in women over 50 who have gone through menopause.
Fayetteville, ArkansasAges Any age - 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 - NCT07346001Recruiting
How sugar warnings affect weight beliefs
This study looks at how warning labels on sugary drinks might affect people's thoughts about weight. If you buy sugary drinks sometimes, you may be able to join and attend four visits.
Chapel Hill, North CarolinaAges 18 years+ - NCT07341841Enrolling by invitation
Obesity risk factors study in adults
This study looks at how genes and lifestyle affect obesity risk. It includes adults aged 18 to 70 with different weight levels, from overweight to severe obesity.
Augusta, GeorgiaAges 18–70 - NCT07331103Recruiting
Can a special diet reduce inflammation for heart health?
This study tests whether a special diet can reduce inflammation and improve heart health in people over 55 who are at increased risk for heart disease but have not yet had a heart attack or stroke.
Cortona, ArezzoAges 55 years+ - NCT07332273RecruitingPhase 3
Levothyroxine for weight loss in obesity
This trial tests whether adding levothyroxine (a thyroid hormone) to a low-calorie diet helps people with obesity lose more weight. It is for adults aged 25-60 with a BMI of 30-39.9 who have either mild underactive thyroid or normal thyroid but higher thyroid hormone levels in the normal range.
CadizAges 25–60 - NCT07329985Recruiting
Fear of low blood sugar in diabetes
This study looks at how afraid people with diabetes are of low blood sugar (hypoglycemia). It may help doctors understand your worries and improve care.
BilecikAges 18–65 - NCT06869603Recruiting
Mediterranean diet for recurrent kidney stones and bone health
This trial looks at whether following the Mediterranean diet helps people who get kidney stones over and over again. It also checks how diet affects bone health. If you have had multiple kidney stones, you may be able to join.
NaplesAges 18 years+ - NCT07309250Recruiting
Blue muffin test for gut function in overweight adults
This study uses a blue-colored muffin to check how well your stomach and intestines work. It may help doctors understand and treat digestive problems in people with obesity.
Leuven, Flemish BrabantAges 18–65
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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.