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
- NCT07268508Recruiting
Study of a gut-healthy diet after weight-loss surgery
This study tests how a special diet after weight-loss surgery affects gut bacteria, eating habits, and sense of taste and smell. Researchers want to see if this diet can improve long-term results.
LyonAges 25–65 - NCT07270068Recruiting
Diabetes remission through lifestyle change for Malaysian patients
This study tests whether a lifestyle program can help Malaysian adults with recently diagnosed type 2 diabetes and overweight or obesity achieve remission of their diabetes. If you qualify, you’ll get support to change your diet and activity habits.
Seremban, Negeri SembilamAges 18–70 - NCT07283328Recruiting
Methionine and Gut Bacteria Study in Healthy Adults
This study looks at how a diet low in methionine (a protein building block) affects the bacteria in your gut.
Montreal, QuebecAges 20–50 - NCT07283341Recruiting
Diet and Gut Movement in Irritable Bowel Syndrome
This study looks at how diet affects gut movement in children with irritable bowel syndrome (IBS). It may help find better ways to manage IBS symptoms.
Philadelphia, PennsylvaniaAges 8–18 - NCT07294963Recruiting
Lifestyle changes to help thinking and memory in fatty liver disease
This trial tests whether lifestyle changes can prevent cognitive decline in people with non-alcoholic fatty liver disease. If you have fatty liver and are between 18 and 42 years old, you may be able to join.
Peshawar, KPKAges 18–42 - NCT07332273RecruitingPhase 3
Levothyroxine for weight loss in obesity
This trial tests whether adding levothyroxine (a thyroid hormone) to a low-calorie diet helps people with obesity lose more weight. It is for adults aged 25-60 with a BMI of 30-39.9 who have either mild underactive thyroid or normal thyroid but higher thyroid hormone levels in the normal range.
CadizAges 25–60 - NCT07346001Recruiting
How sugar warnings affect weight beliefs
This study looks at how warning labels on sugary drinks might affect people's thoughts about weight. If you buy sugary drinks sometimes, you may be able to join and attend four visits.
Chapel Hill, North CarolinaAges 18 years+ - NCT07361640Recruiting
E-health lifestyle program for type 2 diabetes
This trial tests a smartphone-based lifestyle program to help people with newly diagnosed type 2 diabetes lose weight and improve blood sugar control. You'll get a digital program with coaching and support, instead of usual care alone.
OsloAges 18 years+ - NCT07364045Recruiting
Diet and diabetes remission in overweight adults
This study tests whether a special diet can help reverse type 2 diabetes or prediabetes in people who are overweight. It compares people with type 2 diabetes, prediabetes, and healthy controls to see how weight loss affects fat in the pancreas.
EdinburghAges 45–79 - NCT07374042RecruitingPhase 3
A supplement to protect muscle in advanced kidney disease
This trial tests whether a special diet supplement (Ketoanalogue) can help protect your muscles while you follow a moderate protein diet. It is for people with chronic kidney disease stage 4 or 5 who are not on dialysis or have not had a kidney transplant.
Clermont-FerrandAges 18–100 - NCT07375238Recruiting
Gazpacho daily for better sperm health
This study tests whether drinking gazpacho daily can improve sperm quality and reduce stress in the body. It may help men with low or abnormal sperm counts.
Madrid, MadridAges 18–45 - NCT07378306RecruitingPhase 2
Fasting-mimicking diet with chemo-immunotherapy for triple-negative breast cancer
This trial tests whether adding a special low-calorie diet (called a fasting-mimicking diet) to standard chemotherapy and immunotherapy can help treat triple-negative breast cancer before surgery. It aims to see if this combination makes the treatment work better.
Guangzhou, GuangdongAges 18–70 - NCT07394114RecruitingPhase 3
Study of a new medicine for type 2 diabetes not controlled by diet and exercise
This trial tests a new medicine called HDM1005 for people with type 2 diabetes who haven't been helped enough by diet and exercise alone, and who haven't taken any diabetes medication in the last 12 weeks. It aims to see if the medicine can help lower blood sugar levels safely.
BeijingAges 18–75 - NCT01945840Recruiting
Study how gut hormones change after weight-loss surgery
This study looks at how gut hormones and blood sugar control change after Roux-en-Y gastric bypass. It may help researchers understand what supports healthier glucose levels after bariatric surgery.
London, Greater LondonAges 18–70 - NCT02455193Recruiting
Exercise study for people with schizophrenia
This study looks at how exercise affects brain function in people with schizophrenia or schizoaffective disorder. It may help researchers understand whether exercise can improve brain-related outcomes alongside standard treatment.
Aurora, ColoradoAges 21–70 - NCT03156478Recruiting
Online coaching to help people at risk of diabetes
This study tests an online, knowledge-based program to help people lower their risk of developing diabetes. It is meant for adults who are not diagnosed with diabetes yet but have risk factors such as abnormal blood sugar tests.
KuopioAges 18–70 - NCT07672938Recruiting
Olive supplement and Mediterranean diet for mild memory loss
This trial tests whether a dietary supplement made from olive polyphenols, combined with following a Mediterranean diet, can help protect thinking and memory in people with mild cognitive impairment (MCI). It may be a good fit if you have early memory changes and want to try a nutrition-based approach.
Thessaloniki, Central MacedoniaAges 50–85 - NCT03241732Enrolling by invitation
PET-MRI scan study for ongoing brain injury symptoms
This trial uses special brain scans (PET and MRI) to study chronic symptoms after a past traumatic brain injury (TBI), such as memory trouble, mood changes, and headaches. It may help researchers understand what’s going on in the brain and how it relates to symptoms like anxiety or distress.
Philadelphia, PennsylvaniaAges 18–80 - NCT07426003Recruiting
Healthy volunteer nutrition study with a special drink
This study looks at how healthy adults digest a special nutritional drink. Researchers want to understand normal digestion to help improve care for people with feeding tubes.
Philadelphia, PennsylvaniaAges 18–70 - NCT07426146Recruiting
Diet for PCOS: Low glycemic, high fiber study in Yunnan
This study tests if a diet low in quickly digested carbs (low glycemic index) and high in fiber can help women with PCOS who are overweight. You'll follow this eating plan and not change your exercise, to see how it affects your PCOS symptoms over several months.
Gengma County, YunnanAges 19–40 - NCT07428187Recruiting
Snacking effects on brain response and fullness during dieting
This trial tests how eating a daily snack of walnuts or pretzels affects your brain's response to food and feelings of fullness while you are on a weight-loss diet. You must be willing to follow a structured meal plan and have an MRI scan.
Aurora, ColoradoAges 25–45 - NCT07431359Recruiting
Mediterranean diet study for type 2 diabetes patients
This trial looks at what people with type 2 diabetes know about diet and how often they eat a Mediterranean diet. It aims to understand if this way of eating can help with diabetes management.
Peschiera del Garda, VeronaAges 18–80 - NCT07446777Recruiting
Fasting and Mediterranean diet for multiple myeloma
This study tests whether a special diet—longer nightly fasting plus a Mediterranean eating pattern—can help people with multiple myeloma or its early stages. If you qualify, you will be randomly assigned to start the diet right away or join a waitlist group.
Miami, FloridaAges 18 years+ - NCT07467447RecruitingPhase 2
Testing a weight-loss drug for people with obesity or overweight
This trial tests whether an experimental drug (LY3437943) can help people with obesity or overweight lose weight. It compares the drug to a placebo (inactive shot), and you must be willing to give yourself daily injections.
Shenzhen, GuangdongAges 18–75
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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.