Clinical trials
Diet, Healthy clinical trials
Below are recruiting diet, healthy clinical trials, each written for real people, not researchers. We’re tracking 99 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06538415Recruiting
Can peas and beans improve your skin health?
This study tests whether adding more peas, beans, and lentils (polyphenol-rich pulses) to your daily diet can improve your skin health by changing the natural bacteria living on your skin.
Gainesville, FloridaAges 45–65 - NCT04942093Recruiting
High-protein low-calorie diet before weight-loss surgery
This trial studies whether a higher-protein, lower-calorie diet before sleeve gastrectomy (a type of weight-loss surgery) changes outcomes after surgery. You may be able to join if you’re scheduled for the operation and meet specific health and safety requirements.
DieppeAges 18–65 - NCT04735835Recruiting
Personalized diet testing using ZOE app and blood samples
This trial studies how different food compositions affect your body, using the ZOE testing program plus meals you eat and blood samples you collect. It may help you learn more about what foods work best for you, especially if you have a long-term health condition.
Needham, MassachusettsAges 18 years+ - NCT07151365Recruiting
Plant-based diets and healthy aging study
This study looks at how a plant-based diet might help people age in a healthy way. It is for adults 40 and older who are part of the Tzu Chi Foundation and are joining a health checkup program.
Dalin, ChiayiAges 40 years+ - 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 - NCT07675603Recruiting
Low-carb diet and cholesterol study
This study looks at how a low-carb, high-fat ketogenic diet affects cholesterol levels in healthy adults. It may help you understand how your body responds to this type of diet.
Bath, Bath and North East SomersetAges 18 years+ - 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 - NCT06871267Recruiting
Dietary changes for mild to moderate Crohn's disease
This study looks at how changing your diet might help people with Crohn's disease feel better. It is for adults with mild to moderate Crohn's who are not using a liquid-only diet and have not had recent surgery.
Kuala Lumpur, Petaling JayaAges 18–50 - NCT06977113Recruiting
High-fiber fermented foods for breastfeeding moms and babies
This study tests if a diet rich in high-fiber fermented foods for breastfeeding mothers can improve the gut health of their exclusively breastfed infants. It is designed for healthy mothers and babies without chronic conditions or recent antibiotic use.
Glasgow, ScotlandAges 2 months–45 years - NCT06711614Recruiting
Can a special diet protect lungs from woodsmoke?
This study tests whether a special diet can help protect lungs from the effects of woodsmoke. If you join, you'll eat provided meals for several weeks while researchers check your breathing.
Vancouver, British ColumbiaAges 19–40 - NCT06252922Recruiting
How diet changes genetic material in healthy young men
This study looks at how diet can change genetic material in healthy young men. You would eat prepared meals, wear a glucose monitor, and give blood and sperm samples to help researchers understand these effects.
Baton Rouge, LouisianaAges 20–35 - 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 - NCT07729436Recruiting
Healthy eating study for online food pantry users
This study tests a program to help people make healthier choices when ordering from an online food pantry. It may help if you regularly use an online food pantry and are interested in improving your diet.
Chicago, IllinoisAges 18 years+ - NCT06939231Recruiting
Supporting UCD students toward healthier eating
This trial tests ways to help UCD students build healthier and more sustainable eating habits. It uses a 'living lab' approach, meaning you'll help shape and test real-world changes on campus.
DublinAges 18–30 - NCT07361406Recruiting
SweetSpot: How non-nutritive sweeteners affect health
This study looks at how non-nutritive sweeteners (like the ones in diet sodas) affect your health. You'll follow a special diet for a few weeks, and researchers will check things like blood sugar and metabolism.
Wageningen, GelderlandAges 45–79 - 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 - NCT06216678Recruiting
Can healthy diets with plant oils improve heart health?
This study tests if adding plant oils to a healthy diet can improve cholesterol and other heart health markers in people with moderately high cholesterol. It involves following a specific meal plan and having your health monitored over several weeks.
University Park, PennsylvaniaAges 25–60 - NCT06516146Recruiting
Impact 360 for healthy aging
This trial studies a program called Impact 360 that combines exercise, mindfulness, and nutrition to see if it helps older adults stay healthy and sharp. If you're generally healthy, have a smartphone, and can do an MRI, you may be able to join.
Vancouver, British ColumbiaAges 50–75 - NCT06824974Recruiting
Time-restricted eating for liver disease or cancer
This study tests whether combining time-restricted eating with healthy eating helps people with metabolic liver disease, cirrhosis, or early-stage liver cancer. If you are overweight and currently fast less than 12 hours at night, this diet approach might improve your health.
La Jolla, CaliforniaAges 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+ - NCT05432362Recruiting
Energy sensing brain study in depression and weight groups
This study tests how the brain and body respond to “energy sensing” in people with depression and in people with different body weights. You may be asked to do assessments and follow specific health and diet rules so the researchers can compare groups.
Graz, StyriaAges 18–40 - NCT07564674Recruiting
How Your Body Processes Broccoli Extract Supplements
This study tests how well your body absorbs and uses broccoli extract supplements. Researchers want to understand if these supplements deliver their plant-based benefits effectively, which could help improve future supplement design.
Corvallis, OregonAges 18–60 - 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 - NCT07221045Recruiting
Food as medicine for food-insecure families in rural North Carolina
This study tests whether providing fresh produce boxes and nutrition classes helps families in rural North Carolina who struggle with food access. If you are a parent or caregiver of an 8–14-year-old and live in a participating county, you may qualify.
Raleigh, North CarolinaAges 8–64
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Common questions
- Are there clinical trials for diet, healthy?
- Yes. Clin2 currently lists 99 recruiting diet, healthy 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, healthy 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, healthy 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.