Clinical trials
Diet clinical trials
Below are recruiting diet clinical trials, each written for real people, not researchers. We’re tracking 649 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07748949Recruiting
Low-calorie diet and lifestyle help for type 2 diabetes
This study tests whether a low-calorie diet combined with a personalized lifestyle program can help people with type 2 diabetes reach remission, meaning their blood sugar stays normal without needing diabetes medication. It uses a smartphone app to support the program.
BangkokAges 18–70 - NCT06669819Recruiting
Vegan diet and supplements during pregnancy and childhood
This study looks at how a vegan diet, with or without supplements, affects pregnancy and early childhood. It includes vegan parents and their children up to age 5, as well as medical experts who advise vegan families.
Vienna, AustriaAges 18 years+ - NCT06192407Recruiting
Healthy fats and brain function in older adults
This study tests whether healthy fats (fatty acids) can support brain function as we age. If you are 65–75 and in good general health, you may be able to help researchers learn more about diet and the aging brain.
Burlington, VermontAges 65–75 - NCT06825936Recruiting
Asian-Mediterranean diet for women's health
This trial tests whether an Asian-Mediterranean diet helps improve health in women who are overweight or obese. You would follow a special eating plan for six months and learn how it affects your weight, heart, and overall well-being.
Singapore, SingaporeAges 21–50 - NCT07632040Enrolling by invitation
Diet changes for chronic hives in teens
This study tests whether avoiding certain foods and food additives can reduce chronic hives (itchy welts on skin) in children and teenagers. Researchers will have participants follow a special diet and track their symptoms over time.
Istanbul, FatihAges 1–18 - NCT05359848Recruiting
Intermittent fasting and plant-based eating during chemotherapy
This pilot study tests whether alternating periods of lower calorie intake, along with a plant-based diet, is safe and feasible for people receiving chemotherapy. If it helps, it could support better comfort and treatment tolerance during cancer therapy.
Buffalo, New YorkAges 18 years+ - NCT07537348RecruitingPhase 2
Leucine-restricted diet with chemotherapy for advanced stomach cancer
This study tests whether a special diet low in leucine (an amino acid) combined with chemotherapy and immunotherapy can safely treat advanced stomach cancer that has spread. Researchers want to see if this dietary approach helps the treatment work better and reduces side effects.
Jinan, ShandongAges 18–70 - NCT06673199Recruiting
Japanese diet and gut health in postmenopausal women
This study tests whether a traditional Japanese diet called 'washoku' can change the gut bacteria in postmenopausal women who are overweight. It may help improve health after menopause.
Poznan, WielkopolskaAges 45–65 - NCT06466434RecruitingPhase 2
Prebiotic diet to boost immunotherapy for melanoma
This trial tests whether a special prebiotic diet can help your body's bacteria (microbiome) better respond to standard immunotherapy for advanced melanoma that cannot be removed by surgery. If you are starting your first immunotherapy, you may be able to join.
Houston, TexasAges 18 years+ - NCT05599139Recruiting
Testing iodine uptake after a low-iodine diet
This study looks at how much iodine your body absorbs after you follow a low-iodine diet before radioactive iodine treatment (131I) for thyroid cancer. It may help improve how safely and effectively this treatment is planned.
Groningen, Provincie GroningenAges 18–75 - NCT07312994Recruiting
How diet affects nerve health proteins
This study looks at levels of two nerve-health proteins in people who follow different diets for at least a year. It may help show how vegan, vegetarian, or omnivorous eating affects your brain and nerves over time.
Salzburg, State of SalzburgAges 18–40 - NCT07303738RecruitingPhase 4
Testing bile-lowering foods for kids with feeding tubes
This trial tests if certain foods can lower bile acid levels in the upper part of the stomach for children who get most nutrition through a feeding tube. It may help understand and manage reflux symptoms related to bile.
Boston, MassachusettsAges 5–21 - NCT07586111Recruiting
Plant Foods for Better Gut and Heart Health
This study tests whether eating more plant-based foods improves your gut bacteria, digestion, and heart health markers. You'll follow a structured diet plan for several weeks while providing blood, stool, and urine samples to measure changes.
LondonAges 30–70 - NCT07354438Recruiting
Antioxidant-rich diet for metabolic syndrome risk
This study tests whether eating more foods rich in antioxidants (like fruits and vegetables) can help lower your risk of metabolic syndrome, a condition that increases your chance of heart disease and diabetes. If you have a larger waist size and higher blood pressure, and you don't eat many fruits and vegetables, this trial may be a good fit.
Lahore, Punjab ProvinceAges 18–45 - NCT06623097Recruiting
Exercise and nutrition for older cancer survivors and their support person
This study tests whether a program of exercise and healthy eating can help older cancer survivors and their support person improve physical and mental health. You and your support person will participate together.
Miami, FloridaAges 18 years+ - NCT07229482Recruiting
Potatoes and your health: a 14-week food study
This study tests whether eating potatoes (as part of a provided diet) can improve blood sugar and heart health markers – possibly lowering your risk for type 2 diabetes.
Blacksburg, VirginiaAges 50–70 - NCT07728240Recruiting
Diet, health, and exercise study
This study looks at how your diet and health affect your body's response to exercise. You'll do some thinking tests, record what you eat, and ride a bike at a moderate pace.
River Falls, WisconsinAges 18–60 - NCT07459504RecruitingPhase 2
Smart diets for kids with fatty liver disease
This study compares different diet plans to see which works best to reduce fat in the liver of children and teens with MASLD (a type of fatty liver disease). If your child drinks sugary beverages often and has certain health risks like being overweight or having high cholesterol, this trial may help find a healthy eating plan that works.
Grand Rapids, MichiganAges 11–17 - NCT06600347Recruiting
DASH diet and relaxation for heart health in menopause
This study tests whether a healthy eating plan (DASH diet) combined with a simple relaxation technique can lower heart risks in women after menopause. It may help you manage blood pressure and stress without medication.
SuezAges 50–60 - NCT06565104Recruiting
Sleep study for people with high blood pressure
This study tests whether improving sleep can lower blood pressure. It is for people with elevated blood pressure or hypertension who speak English or Spanish.
New York, New YorkAges 20 years+ - NCT06259396Recruiting
8x5 Diet for Bile Acid Diarrhea
This trial tests a special 8-hour eating window (8x5 Diet) for people with bile acid diarrhea. It aims to see if this diet can help manage symptoms when medication alone is not enough.
Manchester, Greater ManchesterAges 18 years+ - NCT07464899Recruiting
Body composition and lifestyles in athletes with disabilities
This study looks at body composition and lifestyle habits in athletes with disabilities who train regularly. It aims to learn how these factors relate to sports performance and health.
San Vicent del Raspeig, AlicanteAges 18 years+ - NCT07409025Recruiting
Can sensory stimulation help burn extra calories?
This study looks at how sensory stimulation, like certain smells or tastes, might help your body burn more calories after eating. You don't need to have a medical condition—healthy volunteers are invited to help researchers learn about this process.
BaselAges 18–40 - NCT07713940Recruiting
Anti-inflammatory diet study for lupus patients
This study tests whether an anti-inflammatory diet can help people with lupus who are on certain medications. It focuses on reducing pain and improving quality of life over 12 weeks.
La Jolla, CaliforniaAges 18 years+
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Common questions
- Are there clinical trials for diet?
- Yes. Clin2 currently lists 649 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.