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
- NCT06603519Enrolling by invitation
Can a diet reduce inflammation after a colonoscopy?
This study tests whether a special diet can help reduce inflammation and improve gut health after a colonoscopy. It is for people who are getting a repeat colonoscopy because they've had polyps before.
San Diego, CaliforniaAges 18 years+ - NCT06586970Recruiting
Meals plus therapy to prevent falls for older adults
This study tests whether adding occupational therapy and dietitian services to home-delivered meals helps older adults stay safe and reduce falls. It's for people who are homebound, can't have a caregiver cook for them, and live in central Ohio.
Columbus, OhioAges 60 years+ - NCT06583447Recruiting
Time-Restricted Eating for Kids with Severe Obesity
This study tests whether eating only during a set window of time each day can help children ages 8–17 with severe obesity lose weight in a healthy way. It is a safer alternative to extreme diets or surgery.
Suzhou, JiangsuAges 8–17 - NCT06579950Recruiting
Cool roofs and health study
This study tests whether a special cool roof coating can lower indoor temperatures and improve health. You may be eligible if you live in a home with a stable, safe roof.
OuagadougouAges 18 years+ - NCT06574178Recruiting
Testing if a healthy diet reduces inflammation in psoriasis
This study uses a full-body PET scan to see if switching to a balanced, nutritious diet can lower inflammation throughout the body and in the skin for people with psoriasis. It may help if you are overweight and have a poor diet.
Sacramento, CaliforniaAges 18 years+ - NCT06174389Recruiting
Weight loss study: diet, appetite and body changes
This study looks at how diet, appetite, and body changes work together during weight loss. It's designed for people with a BMI of 30 to 50 who want to lose weight and are not taking certain medications or have certain health conditions.
Seattle, WashingtonAges 18–60 - NCT06560554Enrolling by invitation
Fermented diet for long COVID microbiome health
This study tests whether eating fermented foods (like yogurt, kimchi, or sauerkraut) can improve gut health and ease symptoms in people with long COVID. You'll log your food on your phone and follow a fermented diet for a period of time.
Rochester, MinnesotaAges 18 years+ - NCT06558201Enrolling by invitation
Open-label extension for completers of earlier study
This trial is for people who finished a 12-week study (NCT06221852) and still meet its original requirements. It offers continued access to the study treatment.
Belmont, MassachusettsAges 18–45 - NCT06169449Recruiting
Weight management for overweight endometrial cancer patients
This trial tests a weight management program for women with early-stage endometrial cancer or atypical hyperplasia who want to keep their fertility. It aims to see if losing weight can improve treatment outcomes.
Beijing, ChinaAges 18 years+ - NCT06545721Recruiting
Weight changes and hormone health in PCOS
This study looks at how weight changes affect hormone levels and insulin resistance in women with PCOS. It may help understand if weight cycling is harmful or helpful.
Beijing, Beijing MunicipalityAges 18–45 - 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 - NCT04985630Recruiting
Check whether Urolithin A can be measured from blood spots
This study tests whether a substance called urolithin A can be detected using dried blood spots (small samples on a card). It also checks whether people can safely take the study product and complete questionnaires during the study.
San Francisco, CaliforniaAges 18–80 - NCT06489262Recruiting
Healthy Together (Juntos) program for Hispanic teens
This study tests a program called Healthy Together (Juntos) to help Hispanic teens and their parents make healthier choices about activity, eating, and screen time. Families who join will get support to improve their habits.
Miami, FloridaAges 12–15 - NCT06482944Recruiting
Whole-food diet program for families to prevent type 2 diabetes
This 12-week program helps parents with prediabetes and their children eat healthier whole foods based on U.S. dietary guidelines. The goal is to see if the program can lower the risk of developing type 2 diabetes in the family.
Nashville, TennesseeAges 6–59 - NCT06482515RecruitingPhase 2
Meal timing for fatigue after blood cancer treatment
This study tests whether timing your meals in a certain way can help reduce fatigue in people who have finished treatment for a blood cancer. If you're still struggling with tiredness, this may offer a practical, non-drug approach to feel better.
Baltimore, MarylandAges 18 years+ - NCT06463028RecruitingPhase 2
Targeted pills plus chemo for advanced endometrial cancer
This trial tests a combination of two targeted pills (sapanisertib and serabelisib) with standard chemo (paclitaxel) for endometrial cancer that has come back or spread. A substudy also looks at combining these drugs with a special diet that lowers insulin levels.
La Jolla, CaliforniaAges 18 years+ - NCT06464497Recruiting
Whole foods for teens with obesity pilot study
This study tests whether replacing processed foods with whole foods (like fruits, vegetables, and whole grains) for 8 weeks can help reduce body fat in teens with obesity. Both the teen and a parent or caregiver will learn to prepare and eat healthier meals together.
Nashville, TennesseeAges 10 years+ - NCT06461247Recruiting
Ready-to-eat meals vs standard care before weight-loss surgery
This trial compares how well patients follow either standard care or ready-to-eat meals before bariatric surgery. It aims to see if providing pre-made meals makes it easier to follow the pre-surgery diet and improve weight loss.
SingaporeAges 21–65 - NCT06431048Enrolling by invitation
Does pausing tube feeding affect recovery?
This study looks at whether briefly pausing tube feedings during certain procedures (like placing a tracheostomy or PEG tube) affects patient outcomes. The goal is to find out if it's safe to continue feeding without stopping, which might prevent delays in nutrition.
Columbia, MissouriAges 18 years+ - NCT06433115Recruiting
Lean beef and your heart and gut health trial
This study tests how eating lean beef for 4 weeks affects your heart health and the bacteria in your gut. If you qualify, you'll be asked to follow a consistent diet and activity routine during the study.
Columbia, MissouriAges 18–45 - NCT06423599RecruitingPhase 2/Phase 3
Weight Loss for Obesity and Heart Failure
This study tests whether weight loss from a medication can improve how you feel, move, and how well your heart works. It's for people who have both obesity and heart failure with reduced pumping strength.
CopenhagenAges 18 years+ - NCT06401694Enrolling by invitation
Enhanced home meal program for older adults' health
This trial is testing a new, enhanced home-delivered meal program for older adults. It aims to see if these meals improve health and well-being for people who are already eligible for Meals on Wheels and are at nutritional risk.
Storrs, ConnecticutAges 60 years+ - NCT06089603RecruitingPhase 4
CPAP for Sleep Apnea with High Red Blood Cells
This study tests whether CPAP therapy (a machine that helps keep your airway open while you sleep) can lower high red blood cell counts in people who have both sleep apnea and polycythemia. It may help reduce the need for other treatments.
Madrid, MadridAges 18–80 - NCT06382298Recruiting
Cottonseed oil vs. similar oil for heart health
This study compares the effects of cottonseed oil versus a similar oil on heart health. It is for people with high cholesterol or who are overweight and want to see if changing cooking oils can improve their cholesterol levels.
Athens, GeorgiaAges 25–75
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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.