Clinical trials
Dietary Supplement clinical trials
Below are recruiting dietary supplement clinical trials, each written for real people, not researchers. We’re tracking 95 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07740967Recruiting
Collagen and omega supplements for middle-aged women
This study tests whether daily collagen and omega-3 supplements can improve health in healthy middle-aged women. You would take the supplements for a period and have your health measured.
LoughboroughAges 35–65 - NCT07729930Recruiting
Creatine supplement study for healthy middle-aged women
This study is testing a creatine supplement (a substance that may help with energy and muscle function) in healthy middle-aged women. You may join if you are between 35 and 65, a non-smoker, and have a certain activity level.
LoughboroughAges 35–65 - NCT05040204RecruitingPhase 1
Test supplements to change how sugars attach to blood proteins
This early (Phase 1) study tests how adding specific dietary supplements affects “protein glycosylation,” which means how sugar molecules attach to proteins in your blood. It’s meant to see how the supplements change these blood measurements and whether the approach is tolerable in generally healthy adults.
Sacramento, CaliforniaAges 18–45 - NCT05357157Recruiting
Electroacupuncture for fibromyalgia pain and quality of life
This trial studies whether electroacupuncture can reduce fibromyalgia pain and improve quality of life. It also looks at changes in certain immune cells, which may help explain how treatments work.
HeraklionAges 18–80 - NCT05919940Recruiting
Testing a muscle stimulation and extra protein plan in ICU patients
This trial tests whether electrical muscle stimulation plus extra protein (protein substitute) can improve muscle health and metabolism in critically ill adults in the ICU. If you’re newly admitted and expected to stay on a breathing machine for several days, it may help you keep more muscle strength during recovery.
Vienna, State of ViennaAges 18 years+ - NCT05926713Recruiting
Diet supplement plus exercise for muscle loss with lung disease
This trial studies whether adding a dietary supplement to exercise can improve muscle strength in people with muscle loss (sarcopenia) who also have lung disease such as COPD or ILD. It may help you build strength and function without needing urgent hospital care.
TaichungAges Any age - NCT05936346Recruiting
Check safety of a Salvia extract dietary supplement
This trial tests whether a Salvia-based extract (taken like a dietary supplement) is safe and well-tolerated in generally healthy adults. It also checks whether people can follow the study diet and activity routines during the trial.
LuganoAges 55–65 - 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+ - NCT06247813RecruitingPhase 2
Supplements guided by biomarkers for chronic pain
This study tests whether taking specific dietary supplements based on your biomarker results (from a urine sample) can improve quality of life for people with chronic pain. You'll take the supplements daily and report how you're feeling.
Newport, KentuckyAges 18–75 - NCT06256744Recruiting
Can exercise build muscle in young and older adults?
This study tests how resistance exercise (like lifting weights) helps build muscle in healthy people of different ages. If you are free from major health conditions and injuries, you may be able to join and help researchers understand how muscles stay strong.
St. Catharines, OntarioAges 7–35 - NCT06261554Recruiting
Low-dose sesame oral immunotherapy for children
This study tests if a very low daily dose of sesame protein (given as a powder under the tongue) can help children with sesame allergy become less sensitive to sesame. The goal is to reduce the risk of severe allergic reactions from accidental exposure.
Warsaw, Masovian VoivodeshipAges 3–17 - NCT06268665RecruitingPhase 2
Tart Cherry Juice for Preventing Nerve Damage from Chemotherapy
This study tests whether tart cherry juice can help prevent nerve damage (peripheral neuropathy) caused by the chemotherapy drug paclitaxel. Participants drink tart cherry juice daily during their 12 weeks of paclitaxel treatment.
Sacramento, CaliforniaAges 18 years+ - NCT06600633Recruiting
Melatonin supplement for better sleep quality
This trial tests whether a melatonin supplement can improve sleep quality in people with mild sleep issues. It may help if you have poor sleep but not full insomnia.
LjubljanaAges 24–65 - NCT07682532Recruiting
Theanine and Mediterranean diet for Parkinson's symptoms
This trial tests whether a supplement called L-theanine and a Mediterranean diet can improve sleep, digestion, and inflammation in early-stage Parkinson's disease. It may help if you are in stage 1 and live with a healthy partner.
IstanbulAges 50–80 - NCT07039747RecruitingPhase 2
Can a dietary supplement help people with irritable bowel syndrome?
This trial is testing if a dietary supplement can reduce symptoms of irritable bowel syndrome (IBS). You might qualify if you have been diagnosed with IBS, have moderate to severe symptoms, and are between 18 and 75 years old.
Rouen, FranceAges 18–75 - NCT07068191Recruiting
Gepaktiv vs other drugs for fatty liver with enlarged liver
This study tests a new drug, Gepaktiv, compared to two other treatments (UDCA and ademetionine) for people with metabolic fatty liver disease who also have an enlarged liver. You may be able to join if you meet specific test results showing moderate liver fat and scarring.
Tyumen, Tyumen OblastAges 18–65 - NCT07157462Recruiting
Testing a multi-strain probiotic for year-round allergies
This trial tests if a special probiotic blend can help people with year-round allergic rhinitis (nasal allergies) caused by common indoor allergens like dust mites, cat, or dog dander. Volunteers will take the probiotic daily and track their symptoms.
Strasbourg, AlyatecAges 18 years+ - NCT07233148Recruiting
ALS, MND, or PLS registry study
This observational study creates a registry for people with ALS, MND, or PLS. It helps researchers better understand these conditions and find possible treatments.
Park City, UtahAges 18–110 - NCT07383311Recruiting
Memory, sleep, and a natural supplement
This trial tests whether a natural substance (from wheat germ) that boosts a process called autophagy can help improve sleep in people who are worried about their memory or have mild memory problems but do not have dementia.
Greifswald, Mecklenburg-VorpommernAges 55–70 - NCT07347743Recruiting
Probiotic supplement for crying and colic in healthy newborns
This trial tests whether a daily probiotic supplement can reduce excessive crying and colic in healthy, full-term newborns. If your baby is healthy and born at UZ Brussel, this study may help find a gentle way to soothe colic.
Jette, Brussels CapitalAges 1 day–2 weeks - NCT07443943RecruitingPhase 2
Potato starch supplement for joint pain from hormone therapy
This trial studies whether a dietary supplement made from resistant potato starch can help reduce joint and muscle pain in people who are about to start aromatase inhibitor therapy for breast cancer or high risk. You take the supplement daily and report how you feel over 24 weeks.
Ann Arbor, MichiganAges Any age - NCT07453693Recruiting
Urinary health drink mix study for women with frequent UTIs
This trial tests a dietary supplement drink mix designed to improve urinary health. It is for women who have had at least two urinary tract infections in the last six months and are currently at the start of a new UTI.
Harrison, New YorkAges 18–75 - NCT07466420Recruiting
Quercetin for fibrotic lung disease
This trial tests whether taking quercetin, a natural supplement, can help people with fibrotic interstitial lung diseases (a group of conditions that cause scarring in the lungs). If you have been diagnosed with idiopathic pulmonary fibrosis (IPF) or another fibrotic ILD and are on standard treatments, you may be able to join.
Heraklion, CreteAges 18 years+ - NCT07643558Recruiting
Fish oil and weight training for cancer patients' muscle health
This study tests whether taking fish oil supplements combined with progressive weight training exercises can help preserve or build muscle strength in cancer patients undergoing treatment. The goal is to help you maintain physical function and quality of life during cancer care.
Erlangen, BavariaAges 18 years+
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Common questions
- Are there clinical trials for dietary supplement?
- Yes. Clin2 currently lists 95 recruiting dietary supplement 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 dietary supplement 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 dietary supplement 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.