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
- NCT06018636Recruiting
Diet and nutrition in early childhood growth
This study looks at how diet and nutrition affect young children's growth and development. It may help you learn more about feeding your child well.
Swat, Khyber PakhtunkhwaAges 1 day–2 years - NCT06011499Recruiting
Online lifestyle program for prostate cancer survivors
This study tests an internet-based program to help prostate cancer survivors who are overweight and frail improve their health. You will be assigned to either a lifestyle coaching group or a usual care group, and both groups are followed for about 6 months.
Portland, OregonAges 18 years+ - NCT05978206RecruitingPhase 2
Strength, muscle mass, and nutrition therapy for older adults with sarcopenia
This study tests if a combination of a medicine (nandrolone), physical therapy, and a special diet can help older adults with muscle loss (sarcopenia) improve their strength and muscle mass. It is for people age 60 to 99 who have been diagnosed with sarcopenia based on specific muscle strength and mass measurements.
Warsaw, Masovian VoivodeshipAges 60–99 - NCT05985486Recruiting
Lifestyle change for brain health in Down syndrome
This study looks at how a healthy lifestyle program can improve brain health in adults with Down syndrome who are overweight or obese. You will attend a medical center three times over a year for tests, and you'll need a caregiver to support you.
Kansas City, KansasAges 18–64 - NCT05998291Enrolling by invitation
Dermatitis herpetiformis not helped by gluten-free diet
This trial studies two groups of people with dermatitis herpetiformis. One group has a rash that still appears even after following a strict gluten-free diet for at least 3 years. The other group responds well to the diet. The study will compare them to learn more and find better ways to help.
TampereAges 18 years+ - NCT05946044Recruiting
Preventing Knee Arthritis in People at Higher Risk
This study looks at ways to help prevent knee osteoarthritis before it starts. It is designed for women with higher body weight who currently have no arthritis signs on scans and do not have much knee pain.
Boston, MassachusettsAges 50 years+ - NCT05962372Recruiting
Culturally tailored diet program for adults in Puerto Rico
This study tests a diet program designed to fit Puerto Rico culture and daily life. It may help adults with weight or blood sugar or blood fat concerns improve their health through regular check-ins.
San JuanAges 30–65 - NCT05933707Recruiting
Study tiny vesicles and how they affect insulin
This study looks at how very small particles in the body (“extracellular vesicles”) relate to insulin action and how the body handles sugar. It may help researchers understand why some people have better or worse insulin responses.
St Louis, MissouriAges 25–55 - NCT05907889Enrolling by invitation
Food Study for Adults (FoodSEqual)
This study tests something about food choices or nutrition in adults. If you can legally consent and are 18 or older, you may be able to take part.
Reading, BerkshireAges 18 years+ - NCT05866406Recruiting
Time-restricted eating to improve heart and sugar health
This study tests whether eating only within a set daily time window can improve cardiometabolic health (things like blood sugar and heart-related measures). You may be eligible if you have overweight and borderline/high-risk blood sugar but do not have diabetes and can follow the eating and testing rules.
CambridgeAges 25–75 - NCT05869760Recruiting
Nutrition biomarker study in healthy infants and toddlers
This study measures body signals (biomarkers) to learn how nutrition relates to growth in healthy infants. It may help researchers better understand nutrition needs and what measurements can show early on.
Houston, TexasAges 3 months–2 years - NCT05847478Recruiting
Acupressure vs eating plan breaks for specific stomach syndrome
This study compares ear (auricular) acupressure to an intermittent dietary restriction approach in children who have a particular “stomach heat and dampness” pattern from Traditional Chinese Medicine. The goal is to see which method better helps children with certain weight and blood-sugar or cholesterol risks.
ShanghaiAges 6–18 - NCT05839210Recruiting
Diet and exercise coaching for lymphoma survivors
This study tests whether a Mediterranean-style diet and home exercise plan can improve health and recovery in people who have been treated for non-Hodgkin or Hodgkin lymphoma with chemotherapy. You may also be placed on a waitlist/control group to compare outcomes.
Miami, FloridaAges 18 years+ - NCT05793996RecruitingPhase 4
Testing an iron infusion for iron deficiency in HFpEF
This study checks how common iron deficiency is in people with HFpEF (heart failure with preserved pumping strength) and tests whether an iron infusion (Ferinject®) improves health. It targets people with stable heart symptoms and lab results showing low iron stores or related iron deficiency.
TomskAges 18 years+ - NCT05795439Recruiting
Plant-based nutrition program for adults with type 2 diabetes
This study tests whether a structured plant-based diet plan, weekly online classes, and keeping exercise routine steady can improve health in adults with type 2 diabetes. You may qualify if you’re able and willing to follow the program for the first 16 weeks.
Washington D.C., District of ColumbiaAges 18 years+ - NCT05770570RecruitingPhase 2
Diet and activity texting support for Mexican American drivers
This Phase 2 study tests a structured program using texts and recordings to help people improve diet and physical activity for weight loss. It focuses on specific Spanish-speaking groups and also includes a separate track for taxi/FHV drivers.
New York, New YorkAges 21 years+ - NCT05746442Recruiting
Interactive quitting messages for Khmer-speaking people with HIV
This trial tests whether interactive, personalized messages can help people who smoke cigarettes quit. It is designed for Khmer-speaking adults living with HIV and aims to support a quit attempt within about two weeks.
Phnom PenhAges 18 years+ - NCT05732623Recruiting
Study of early colorectal cancer risk factors in younger adults
This study looks at factors that may contribute to early-onset colorectal cancer (cancer in the colon or rectum diagnosed at a young age). It compares people with early-onset colorectal cancer to people without cancer to better understand possible causes and risks.
Denver, ColoradoAges 18–49 - NCT05721976Recruiting
Grandmother–daughter lifestyle program for certain cancer survivors
This pilot study tests a supportive program for grandmothers who finished breast, endometrial, or ovarian cancer treatment and their adult daughters. It aims to encourage healthier habits, including physical activity, using phone-based support and Spanish/English materials.
Miami, FloridaAges 21 years+ - NCT05681468Recruiting
Ketogenic diet trial for blood sugar and inflammation outcomes
This study compares two versions of a ketogenic (very low-carb) diet to see how they affect blood sugar control and inflammation. It may help people with overweight or obesity who have pre-diabetes-level blood sugar understand which fat sources work better.
Edmonton, AlbertaAges 18–70 - NCT05695040Recruiting
Diet workshop after bariatric surgery
This study tests whether a structured diet workshop, held about 15 days after bariatric (weight-loss) surgery, helps patients with their post-surgery eating plans. You may be invited to join the workshop if you are scheduled for surgery and can attend as required.
Clermont-FerrandAges 18 years+ - NCT05651919Recruiting
Blood test study to understand diabetic heart weakness
This study measures immune cells from your blood to find markers (biomarkers) that may explain or predict diabetic cardiomyopathy, a type of heart condition linked to diabetes. You may benefit mainly by being closely monitored and contributing to research that could improve future diagnosis or risk tracking.
BronAges 40–85 - NCT05590351Recruiting
Mobile app coaching for exclusive breastfeeding in Pakistan
This study tests whether a smartphone app can help pregnant mothers practice “exclusive breastfeeding” and other early child-feeding habits. If you join, you’ll receive app support during pregnancy and after birth to improve feeding and breastfeeding outcomes.
Karachi, SindhAges 18–48 - NCT05545306Recruiting
Study tests how extra calories change your daily energy use
This study looks at how eating more calories affects your body’s natural heat production and total energy use over a full day. It may help researchers better understand how the body manages weight and energy.
Phoenix, ArizonaAges 18–60
Hear when a new Diet trial opens
We’ll email you when one opens — at most once a week, no account needed, unsubscribe anytime.
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.