Clinical trials
Diet clinical trials
Below are recruiting diet clinical trials, each written for real people, not researchers. We’re tracking 651 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT05899166Recruiting
Diet study to improve blood sugar control in new diabetes
This study looks at how carbohydrate intake may affect how well insulin-producing cells work and how stable your blood sugar becomes in children with newly diagnosed type 1 diabetes. It may help families learn dietary steps that improve glucose control early on.
Boston, MassachusettsAges 5–12 - NCT05931562Recruiting
How diet may change gut bacteria and brain signals
This study looks at how changing your diet affects the gut bacteria and how that may influence brain-related signals. It may help researchers understand whether diet could support overall brain and gut health.
CorkAges 18–50 - NCT05973500Recruiting
Mediterranean diet study for inflammatory bowel disease
This trial studies whether eating a Mediterranean-style diet can improve inflammatory bowel disease (including mild to moderate Crohn’s). It may help by testing changes in gut inflammation measured by your symptoms and stool tests.
San Diego, CaliforniaAges 18 years+ - NCT05973539Recruiting
Study on how different foods change blood lipids
This study tests how your blood fat levels respond to changes in the types of nutrients you eat (carbohydrates, fats, and proteins). It may help researchers understand what dietary patterns best affect heart and metabolism-related blood measures.
OxfordAges 18–65 - NCT05984888Recruiting
MIND diet study for women with breast cancer
This study is testing whether a special diet called the MIND diet can help women with hormone receptor-positive breast cancer who are getting treatment. The diet focuses on foods that are good for the brain, like leafy greens and berries.
Columbus, OhioAges 45–75 - NCT06000774Recruiting
Therapeutic Ketogenic Diet for Anorexia Nervosa
This study tests whether a therapeutic ketogenic diet (a very low-carb, high-fat eating plan) can help people with anorexia nervosa, including those who have recently recovered their weight and those who are still underweight. The diet may help improve brain function and reduce eating disorder symptoms.
San Diego, CaliforniaAges 18–45 - NCT06044935Recruiting
Nicotinamide riboside for fat burning and metabolism
This study tests whether a supplement called nicotinamide riboside (a form of vitamin B3) helps the body burn fat more efficiently during exercise. It may be a good option if you are overweight or have a specific type of diabetes (MODY2) and want to see if a natural supplement can boost your metabolism.
Bethesda, MarylandAges 18–65 - NCT06055894Recruiting
Plant-based diet and supplements for smoldering myeloma or MGUS
This study tests whether a plant-based diet and certain supplements can help people with smoldering multiple myeloma (SMM) or monoclonal gammopathy of undetermined significance (MGUS). Participants will learn to cook plant-based recipes and track their meals using a phone app.
Basking Ridge, New JerseyAges 18 years+ - NCT06075485Recruiting
Ketogenic diet for drug-resistant epilepsy in children
This study looks at how well the ketogenic diet (a high-fat, low-carb diet) works for children with epilepsy that doesn't improve with standard medicines. It uses a special product called KetoCal to help maintain the diet and tracks results in real life.
LilleAges 5 months–18 years - NCT06090409Recruiting
Plant-based diet study for food insecure adults
This study is testing whether offering plant-based food options can improve health for adults who have had trouble getting enough food. It takes place in an underserved city community and involves completing a few surveys.
Louisville, KentuckyAges 18 years+ - NCT06151015Recruiting
Dietary nitrate and calorie restriction for brain health
This study tests whether eating foods rich in dietary nitrates (like beets) combined with reducing calorie intake improves memory and blood vessel function in older adults.
Nottingham, NottinghamshireAges 60–75 - NCT06188754Recruiting
Healthy lifestyle program for bipolar disorder and sleep issues
This study tests a healthy lifestyle program (including diet changes) for people with bipolar disorder who have sleep problems. It aims to improve sleep and overall well-being by teaching new habits.
Berkeley, CaliforniaAges 18–65 - NCT06214598Recruiting
Anti-inflammatory diet for breast cancer patients on hormone therapy
This study tests whether a special anti-inflammatory diet can help reduce side effects in breast cancer survivors who are taking aromatase inhibitors after menopause. You would be randomly assigned to either follow the diet for 6 months or continue your usual diet, and your health will be monitored.
BelgradeAges 45–70 - NCT06250309Recruiting
Mediterranean diet vs. Western diet for fatigue in AIH
This study tests whether a Mediterranean diet can reduce fatigue in people with autoimmune hepatitis (AIH) compared to a typical Western diet. You will receive frozen meals for a week and track your energy levels.
Indianapolis, IndianaAges 18–80 - NCT06265246Recruiting
Milk and yogurt for stronger bones in young adults
This study tests whether adding milk and yogurt to your diet can improve bone health and body composition. If you're a young adult with low calcium intake, you may qualify to join.
Saskatoon, SaskatchewanAges 19–30 - NCT06266689Recruiting
Dietary data return for infants
This study asks parents to collect and mail in stool samples from their infant over the next two years. Researchers want to learn more about how diet affects baby health.
Durham, North CarolinaAges Up to 1 year - NCT06280079Recruiting
High-calorie fatty diet for ALS patients
This trial tests a very high-calorie, fatty diet to see if it helps people with ALS. If you have been diagnosed recently and are not too advanced in the disease, this special diet may give your body extra energy to slow progression.
AachenAges 18 years+ - NCT06288672Recruiting
Skin patch test for food allergies in IBS
This study tests whether a skin patch can help identify food allergies in people with irritable bowel syndrome (IBS) whose symptoms are not well controlled. It involves avoiding certain foods and using patches on your back to see if you react.
North Wales, PennsylvaniaAges 18 years+ - NCT06298734Recruiting
Exercise and diet study for melanoma patients on immunotherapy
This study tests whether adding high-intensity exercise and a high-fiber diet can improve how well immunotherapy works for people with melanoma. It might help you if you are already on immunotherapy and are not currently very active or eating a lot of fiber.
Boston, MassachusettsAges 18 years+ - NCT06309251Recruiting
Ketogenic diet for children with epilepsy or other conditions
This trial studies how well a ketogenic diet works for children with hard-to-treat epilepsy or certain other diseases. It aims to see if the diet improves quality of life.
Milan, MIAges Up to 18 years - NCT06325644Recruiting
Ketogenic diet for polycystic kidney disease
This study tests whether a ketogenic diet can slow the progression of polycystic kidney disease in adults who are at risk for rapid decline. You'll follow a carefully planned low-carb, high-fat diet to see if it helps protect your kidneys.
Columbus, OhioAges 18–65 - NCT07696000Recruiting
Nutrition therapy for inflammation in schizophrenia
This trial tests whether a structured medical nutrition plan can reduce inflammation in people with schizophrenia who are on stable antipsychotic medication. If you are hospitalized and able to eat normally, this study may help you understand how diet affects your health.
MedanAges 18–60 - NCT06331546Recruiting
Gut oxalate absorption in calcium oxalate stone patients
This study looks at how much oxalate (a substance in many foods) gets absorbed by the gut in people who form calcium oxalate kidney stones. You will eat a controlled diet and provide urine and blood samples over a few days.
Birmingham, AlabamaAges 18–70 - NCT06339957Recruiting
Rheumatology diet study for arthritis and related conditions
This study looks at how diet affects people with different types of arthritis and related autoimmune conditions. If you are a UCF Health patient between 18 and 65, you may be able to help researchers learn more about which foods help or worsen symptoms.
Orlando, FloridaAges 18–65
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Common questions
- Are there clinical trials for diet?
- Yes. Clin2 currently lists 651 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.