Clinical trials
Supplementation clinical trials
Below are recruiting supplementation clinical trials, each written for real people, not researchers. We’re tracking 671 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07312409Recruiting
Taurine for long COVID vascular health
This study tests whether taking taurine supplements can improve blood vessel function and help with dizziness or fainting caused by long COVID.
Toronto, OntarioAges 18–65 - NCT07299851Recruiting
Fatty acid supplement for bone healing after a leg fracture
This trial tests whether a supplement made from cetylated fatty acids can help heal a simple leg bone fracture faster after surgery. You might be eligible if you have a specific type of leg fracture fixed with a metal rod inside the bone.
Deurne, AntwerpAges 18–85 - NCT07281846Recruiting
TIPS with or without BCAA for cirrhosis and muscle wasting
This trial tests whether adding branched-chain amino acids (BCAA) to the standard TIPS procedure helps people with cirrhosis and muscle wasting. It aims to see if BCAA can improve outcomes after TIPS.
WuhanAges 18–80 - NCT07273630Recruiting
Protein supplement and drinking less fluid after pituitary surgery
This study tests whether a protein supplement combined with drinking less fluid can help keep sodium levels stable after pituitary surgery. It is designed for patients who are at risk of sodium imbalances after their operation.
BaselAges 18 years+ - NCT07273747Recruiting
Kelulut honey for eye allergy and dry eye
This study tests if Kelulut honey eye drops can help people with both allergic conjunctivitis (eye allergies) and dry eye symptoms. If you have been diagnosed with eye allergies and still have bothersome symptoms despite treatment, this trial may offer a natural option to explore.
Kota Bharu, KelantanAges 18–40 - NCT07263789Recruiting
Food supplement for better blood sugar
This study tests a food supplement to see if it helps keep blood sugar levels healthier in people with slightly high blood sugar (pre-diabetes). If you qualify, you would take the supplement and have your blood sugar checked over time.
Pavia, LombardyAges 18 years+ - NCT06669819Recruiting
Vegan diet and supplements during pregnancy and childhood
This study looks at how a vegan diet, with or without supplements, affects pregnancy and early childhood. It includes vegan parents and their children up to age 5, as well as medical experts who advise vegan families.
Vienna, AustriaAges 18 years+ - NCT06573749Recruiting
Milk fat globule membrane supplement for muscle function
This trial tests whether a supplement made from milk fat globule membrane can improve muscle function in healthy adults who are recreationally active. You'll take the supplement daily for 12 weeks and have your muscle function measured.
Loughborough, LeicestershireAges 18–75 - NCT07229014Recruiting
Collagen supplement for quality of life and appetite
This trial tests whether a daily collagen supplement can improve quality of life, appetite, and blood sugar control in overweight adults who feel low energy or have trouble sleeping. You will take the supplement, use a continuous glucose monitor, and complete online surveys.
London, LondonAges 18–65 - NCT07226674Recruiting
Study of gut health and plant nutrients for brain health
This trial tests whether a natural plant compound can help support memory and thinking in people at higher risk for Alzheimer's disease. You may qualify if you are over 50, overweight, eat a typical Western diet, and have a family history of Alzheimer's.
ColeraineAges 50 years+ - NCT06906835Recruiting
Comparing two blood tests to guide iron treatment in dialysis patients
This trial tests whether a new blood test (reticulocyte hemoglobin) is better than the usual iron test (transferrin saturation) for guiding when to give iron to people on dialysis. If you have anemia (low red blood cells) from kidney disease, this study may help doctors find the best way to treat your iron levels.
Pathumwan, BangkokAges 18–80 - NCT07222787Recruiting
Testing a new spinal implant for lower back fusion
This trial tests a new spinal implant system (CORUS-LX) for fusing two lower back discs that are causing pain. It is meant for people with severe, long-lasting back or leg pain that hasn't improved with non-surgical treatments.
Scottsdale, ArizonaAges 18–80 - NCT06837246Recruiting
Nutritional supplement study for cognitive health in adults
This study tests whether a nutritional supplement taken as 3 capsules daily for 12 weeks can improve cognitive function. It is designed for generally healthy adults who do not have certain medical conditions or take certain medications.
Addison, IllinoisAges 25–65 - NCT07177183Recruiting
Low creatinine as a sign of longer breathing tube use
This study looks at whether low blood creatinine levels can help predict which patients will need a breathing machine for a long time or have trouble coming off it. If you are under 18 and in a post-ICU care unit, you may be able to join.
BrnoAges 18 years+ - NCT07166965Enrolling by invitation
Supplement for Heart Failure: Ketones and Hawthorn
This trial tests whether adding a supplement containing ketones and hawthorn extract can help people with heart failure feel better and improve their heart function. You will take the supplement daily and have imaging scans and exercise tests to monitor your progress.
Philadelphia, PennsylvaniaAges 18 years+ - NCT07156552Recruiting
Protein and exercise to prevent muscle loss after weight loss surgery
This trial tests whether taking extra protein and doing resistance training helps people keep their muscle mass after bariatric surgery (stomach reduction or gastric bypass). If you're scheduled for this surgery and can follow the program, you may be able to join.
AmsterdamAges 18 years+ - NCT07151105Recruiting
Vitamin C for gut health in adults with obesity
This trial tests whether taking vitamin C supplements helps improve gut barrier function in adults with obesity. You'll follow a low-fruit-and-vegetable diet for two, two-week periods.
Columbus, OhioAges 18–50 - NCT07129109Recruiting
Comparing weekly versus daily nutrition supplement packs for children
This study compares giving the same nutrition supplement in a 7-day package versus a 1-day package to see if one works better for child growth. It is for caregivers of young children in Ghana.
Kumbungu, Northern RegionAges 18 years+ - NCT07135232Recruiting
Strength training and plant supplement for menopause symptoms
This 6-month study tests if strength training plus a plant-based supplement can help with perimenopause symptoms and muscle health. It's for women ages 40-55 who are not on hormone therapy and not already doing heavy resistance training.
Leeds, North HumbersideAges 40–55 - NCT07120997Recruiting
Prunes to prevent bone loss during perimenopause
This study tests whether eating prunes every day can help prevent bone loss in women going through perimenopause. If you are between 44 and 55, not severely obese, and have irregular periods, you may be able to join.
University Park, PennsylvaniaAges 44–55 - NCT07115563Recruiting
Amino acid supplement test for Parkinson's disease
This trial tests if taking daily amino acid supplements helps people with Parkinson's disease. You need to be on stable Parkinson's medication for at least 3 months.
Farmington, ConnecticutAges 50–90 - NCT07094035Recruiting
Green tea and probiotics for constipation-predominant IBS
This study tests whether a supplement containing green tea extract and probiotics can improve bowel function in people with irritable bowel syndrome (IBS) that mainly causes constipation. If you have chronic constipation and abdominal pain, this could help.
NaplesAges 18–70 - NCT07087561Recruiting
Nutrition and health education after colorectal cancer surgery
This trial tests whether a short-term nutritional supplement combined with health education can improve recovery after surgery for colorectal cancer. It is for people with stage IIa, IIb, or IIIa colon or rectal cancer who have completed surgery and are able to engage in follow-up.
Xi'an, ShaanxiAges 18 years+ - NCT07095244Recruiting
Iron supplements for kids recovering from hip surgery
This study looks at whether giving iron supplements before and after hip surgery helps children recover better. It includes children with or without neuromotor conditions.
Vancouver, British ColumbiaAges birth–18 years
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Common questions
- Are there clinical trials for supplementation?
- Yes. Clin2 currently lists 671 recruiting supplementation 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 supplementation 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 supplementation 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.