Clinical trials
Diet clinical trials
Below are recruiting diet clinical trials, each written for real people, not researchers. We’re tracking 649 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06210009Recruiting
Can a heart-healthy diet help prevent kidney stones?
This study tests whether a special diet (called DASH, similar to one for high blood pressure) can reduce substances in urine that cause kidney stones. If you have had kidney stones and live in the Birmingham area, this diet might help prevent future stones.
Birmingham, AlabamaAges 19–89 - NCT06273631Recruiting
Carbohydrate intake changes and blood sugar in type 1 diabetes
This trial looks at how changing the amount of carbohydrates you eat affects blood sugar control. It aims to find better ways to manage diabetes through diet.
Nanjing, JiangsuAges 18–70 - NCT06308757Recruiting
Studying a very low calorie keto diet for fatty liver disease with scarring
This trial tests whether a very low calorie ketogenic diet (a strict low-carb, high-fat diet) can help people with non-alcoholic steatohepatitis (NASH) who have liver scarring. Participants will follow this diet for a year and have two liver biopsies to see if their liver health improves.
BolognaAges 18 years+ - NCT06450977Recruiting
MIND diet study for people with multiple sclerosis
This study tests whether the MIND diet (a combination of the Mediterranean and DASH diets) can help people with multiple sclerosis (MS). Participants will receive meals and be monitored remotely, so you can take part from home.
Urbana, IllinoisAges 18–64 - NCT06487507Recruiting
Mediterranean diets for men before prostate surgery
This study tests whether a medically designed Mediterranean diet can help men before prostate cancer surgery. You would eat special foods and be monitored closely to see how the diet affects your health and recovery.
Miami, FloridaAges 18–80 - NCT06503809Recruiting
Ketogenic diet study for type 1 diabetes
This study tests if a very low-carb (ketogenic) diet is safe and helps control blood sugar in people with type 1 diabetes. You would follow the diet for a period and use a continuous glucose monitor to track your levels.
St Louis, MissouriAges 18–65 - NCT06515782Recruiting
Fasting-mimicking diet for multiple sclerosis
This study tests whether a special low-calorie diet that mimics fasting can help people with multiple sclerosis feel better and reduce inflammation. Over several months, participants will follow this diet in cycles and be monitored with MRI scans and blood tests.
Los Angeles, CaliforniaAges 18–55 - NCT06567158Recruiting
A moderate carb diet test for kids with type 1 diabetes
This study tests whether eating a moderate amount of carbohydrates (like bread, pasta, and fruit) can help children with type 1 diabetes who use an automated insulin pump. It aims to see if this diet helps keep blood sugar levels in a healthy range.
Leuven, Vlaams-BrabantAges 7–17 - NCT06605898Recruiting
Metabolic and lifestyle study for adults 45-64
This study tests a personalized diet and lifestyle program to improve metabolic health. It may help if you are between 45 and 64, do not smoke, and have no major digestive or liver conditions.
Urbana, IllinoisAges 45–64 - NCT06671613Recruiting
Fasting-mimicking diet with immunotherapy for advanced lung cancer
This study combines a special periodic diet that mimics fasting with the standard immunotherapy drug pembrolizumab (Keytruda) for people with advanced non-small cell lung cancer. The goal is to see if the diet can help the immunotherapy work better.
Long Beach, CaliforniaAges 18 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 - 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 - NCT06747429Recruiting
High-fat diet for heart failure metabolism
This trial tests whether a high-fat diet can help change how your heart uses energy, potentially improving heart function in people with non-ischemic heart failure.
ParisAges 18 years+ - NCT06753682Recruiting
Healthy plant-based diet and gum disease treatment for Chinese adults
This study tests whether eating more fresh vegetables and fruits can improve treatment outcomes for gum disease. You may qualify if you have gum disease, are Chinese, and currently eat fewer than the recommended daily servings of vegetables and fruits.
Hong KongAges 18–64 - NCT06757309Recruiting
Mediterranean diet for heart health in HIV
This study tests if eating a Mediterranean diet can lower heart disease risk for people with HIV who have high LDL cholesterol. You must be on HIV treatment with a suppressed viral load and not already eating a Mediterranean-style diet.
BarcelonaAges 18 years+ - NCT06784323Recruiting
Anti-inflammatory diet for Americans with ulcerative colitis
This trial tests whether a tailored anti-inflammatory diet based on American foods can help people with mild to moderately active ulcerative colitis. You'll follow a special meal plan with foods like soup, smoothies, salmon, and avocado, and researchers will track your symptoms and inflammation.
Miami, FloridaAges 16–75 - NCT06817252Recruiting
Mediterranean diet with potatoes for pre-diabetes
This study tests whether adding potatoes to a Mediterranean diet can improve heart health and blood sugar control in adults with pre-diabetes. You'll follow a specific meal plan and be monitored over time.
Las Vegas, NevadaAges 45–80 - NCT06831292Recruiting
Diet study for men starting IVF treatment
This trial tests whether changing your diet can affect the small molecules in sperm and improve the chances of a successful pregnancy. It's for men who are about to have their first IVF treatment.
Linköping, Östergötland CountyAges 23–56 - NCT06894004Recruiting
Ketogenic diet and cholesterol study
This study looks at why a ketogenic diet can raise cholesterol. You'll follow a controlled keto diet for two weeks, and researchers will measure how your body processes fats.
St Louis, MissouriAges 18–39 - 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 - NCT07018986Recruiting
MIND Diet Study for breast cancer-related memory problems
This study tests whether the MIND diet (a brain-healthy eating plan) can improve memory, thinking, and other cognitive problems that many breast cancer survivors experience after treatment.
Tampa, FloridaAges 18 years+ - NCT07025213Recruiting
Exercise and diet study for endometrial cancer before surgery
This study tests whether combining exercise with a special diet can improve how your body processes energy (metabolism) before you have surgery to remove the cancer. It is for people with early-stage endometrial cancer who haven't yet started treatment.
México, TlalpanAges 18–65 - NCT07028580Recruiting
High-Protein Plant Diet for Liver Cirrhosis
This study tests whether a special diet high in plant-based protein (with some animal protein) can help people with severe liver cirrhosis who are waiting for a kidney transplant. The diet aims to improve nutrition and health without overloading the liver.
Athens, AtticaAges 18–80 - NCT07130318Recruiting
Mediterranean diet and exercise for fatty liver in FMF
This trial tests if a Mediterranean diet plus aerobic exercise can improve fatty liver in women with Familial Mediterranean Fever (FMF) who are also obese. It aims to see if these lifestyle changes help liver health.
Dokki, Giza GovernorateAges 30–55
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Common questions
- Are there clinical trials for diet?
- Yes. Clin2 currently lists 649 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.