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
- NCT07680452Recruiting
High-fiber diet and short-term fasting for melanoma patients on immunotherapy
This trial tests if a high-fiber diet and occasional short-term fasting can help melanoma patients respond better to immunotherapy. It aims to improve treatment outcomes by changing gut health.
Berlin, State of BerlinAges 18 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+ - NCT06080347Recruiting
Anti-inflammatory diet for knee osteoarthritis
This study tests whether an anti-inflammatory diet can help with knee osteoarthritis. If you have OA in one knee and are open to changing your eating habits, you may be able to join.
San Diego, CaliforniaAges 18 years+ - NCT07649005Recruiting
How Salt and Potassium Affect Blood Vessel Health in Older Adults
This study explores how different amounts of sodium (salt) and potassium in your diet affect your blood vessels and heart health. Researchers will monitor your blood pressure and vascular function over time to understand these dietary effects better.
Tallahassee, FloridaAges 55–75 - NCT07634159Recruiting
Health effects of ultra-processed food intake
This study compares the health effects of a diet high in ultra-processed foods (like packaged snacks and sugary drinks) with a diet of less processed foods, to see how they affect your body. If you qualify, you'll eat these diets for a period of time, and researchers will monitor your health.
GothenburgAges 20–60 - NCT07602270Recruiting
How a Ketogenic Diet Affects Alcohol in Your Body
This study tests whether eating a ketogenic diet (very low carb, high fat) changes how your body processes alcohol. Researchers will have you follow a special diet and then measure your body's response to controlled amounts of alcohol in a lab setting.
Philadelphia, PennsylvaniaAges 21–50 - NCT07594600Recruiting
Fiber Diet Effects on Breath Compounds in Healthy Adults
This study examines how different amounts of dietary fiber affect natural chemical compounds released in your breath. Researchers will measure these compounds to understand how fiber influences your gut health and digestion.
ÖrebroAges 18–65 - NCT03710928Recruiting
Very low carbohydrate diet versus standard diet for type 1 diabetes
This study compares a very low carbohydrate diet to a regular diet to see how well blood sugar control works for adults with type 1 diabetes. It may help you understand which eating pattern is easier and safer for managing daily glucose with modern diabetes technology.
Boston, MassachusettsAges 18–40 - NCT07553936Recruiting
Alternative Proteins in Mediterranean Food Supply Chains
This study tests new plant-based and alternative protein foods (like those from legumes, insects, and algae) to see if they're safe, healthy, and practical for everyday use. You'll help researchers understand how these sustainable protein options can work in Mediterranean diets.
Bologna, BOAges 18–65 - NCT07546942Enrolling by invitationPhase 1/Phase 2
Autism Treatment Using Stem Cells, Gut Microbiome, and Diet
This study tests whether a combination of stem cell therapy, gut microbiome restoration (using specially prepared stool), and dietary changes can improve autism symptoms, communication, social behavior, and digestive issues. Researchers believe gut health and immune system problems may contribute to autism, and this trial explores whether treating these areas helps.
Hamilton, MontanaAges 10–90 - NCT06715436Recruiting
Ketogenic diet for multiple sclerosis
This study tests whether a ketogenic diet can help people with multiple sclerosis. You would follow a special high-fat, low-carb diet for a period, and the researchers will check its effects on your symptoms and overall health.
PaviaAges 18–60 - NCT05532137Recruiting
Phone app to help students follow a Mediterranean diet
This trial tests a mobile-phone app designed to help university students eat in a more Mediterranean diet pattern. If you join, the study will check whether using the app improves how consistently you follow that diet.
SevilleAges 18–65 - NCT07537361RecruitingPhase 2
Leucine-Restricted Diet With Chemotherapy for Gastric Cancer
This trial tests whether a special diet low in leucine (an amino acid) combined with chemotherapy and immunotherapy drugs can help treat locally advanced gastric cancer before surgery. The goal is to see if this combination is safe and more effective than standard treatment alone.
Jinan, ShandongAges 18–70 - NCT07517757Recruiting
Diet strategies for fibromyalgia in overweight women
This study tests whether specific eating plans can help reduce fibromyalgia symptoms (widespread pain and fatigue) in women who are overweight or obese. Fibromyalgia causes chronic body pain and tiredness, and this trial explores whether changing diet may improve how you feel.
Genova, GenovaAges 18–65 - NCT07524244Recruiting
Ketogenic and carnivore diets for IBD and rheumatoid arthritis
This study tests whether special diets (ketogenic or carnivore/meat-based) can help reduce inflammation and symptoms in people with inflammatory bowel disease or rheumatoid arthritis. You'll follow dietary guidelines for 3 weeks, then continue in the study while researchers track how you respond.
Charlottesville, VirginiaAges 18–64 - NCT07509671Recruiting
Can a diet help painful diabetic nerve pain?
This study tests whether a special diet can help reduce pain caused by nerve damage from Type 2 diabetes or prediabetes. You may qualify if you have painful diabetic neuropathy and are looking for a non-medication approach.
Hendersonville, North CarolinaAges 18 years+ - NCT07446985Recruiting
Exercise and diet for PCOS with asthma
This study tests whether adding physical exercise to a diet plan helps women who have both PCOS and asthma. It may help you lose weight and manage your symptoms.
Giza, DokkiAges 20–30 - NCT07323706Recruiting
Ayurvedic diet for hypothyroidism with sluggish digestion
This trial tests whether an Ayurvedic diet can help people with hypothyroidism who have a sluggish digestive type (Vishamagni). It may offer a dietary approach alongside your usual thyroid medication.
Copenhagen, FrederiksbergAges 18–90 - NCT07299942Recruiting
Beta-glucan supplement for weight loss in women
This trial tests whether taking a beta-glucan supplement (a type of fiber) during a calorie- and carb-restricted diet helps with losing body weight and fat, controlling appetite, and managing hunger hormones. It is for healthy women who are overweight or obese and not following a special diet.
GlasgowAges 18–60 - NCT07289399Recruiting
Walking with diet for psoriasis and PCOS
This study tests whether adding treadmill walking to a diet plan helps women with psoriasis and PCOS who are obese. It compares the effects of diet alone versus diet plus walking on skin and hormone health.
Giza, DokkiAges 35–45 - NCT07269847Recruiting
Beef-heavy diet study for adults with pre-diabetes
This study tests whether a diet rich in beef can improve metabolic health in adults with pre-diabetes or metabolic syndrome compared to a typical healthy U.S. diet. Eligible participants will follow one of two meal plans for several weeks.
Guelph, Ontario - onAges 18–74 - NCT07229781Recruiting
Mediterranean diet for blood sugar control
This study tests whether a Mediterranean-style diet can help people with prediabetes manage their blood sugar. You'll follow a specific eating plan and the researchers will check your health over time.
University Park, PennsylvaniaAges 25–65 - NCT07195383Recruiting
Safe swallowing check after breathing tube removal in ICU
This study tests a special nutrition program for patients who just had a breathing tube removed in the ICU. It aims to see if a safe swallowing check can help prevent problems and make feeding safer.
IstanbulAges 18 years+ - NCT07189637Recruiting
Mediterranean diet and intermittent fasting for high blood pressure
This study tests if combining the Mediterranean diet with intermittent fasting can help lower blood pressure in people recently diagnosed with hypertension. It may be a good option if you are looking for a diet-based approach to manage your blood pressure.
IstanbulAges 40–65
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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.