Clinical trials
Supplementation clinical trials
Below are recruiting supplementation clinical trials, each written for real people, not researchers. We’re tracking 680 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06930638RecruitingPhase 2
MitoQ and leg conditioning for stroke recovery
This study tests whether a supplement called MitoQ and a special leg-pumping technique can improve blood vessel health in people who had a stroke at least 6 months ago. It may help your body recover better after a stroke.
Milwaukee, WisconsinAges 18–85 - NCT06937190Recruiting
Does creatine before sleep improve power in active women?
This study tests if taking a small dose of creatine before bed helps women who exercise regularly perform better on power-based activities like jumping and sprinting. It's designed for healthy, young women who already do resistance training and want to see if a simple supplement can boost their nighttime recovery and next-day performance.
Shabestar, East Azerbaijan ProvinceAges 18–25 - NCT06944392Recruiting
Pumpkin seed oil supplement for overactive bladder
This trial tests whether a pumpkin seed oil supplement can help with overactive bladder symptoms. You take a daily supplement for 12 weeks and avoid starting other treatments during that time.
Chicago, IllinoisAges 18 years+ - NCT06946017Recruiting
Dairy protein and fiber supplement for gut health
This trial tests if a fermented dairy protein drink with added fiber can improve gut symptoms. It is for active people living in Phoenix who may have mild lactose issues.
Phoenix, ArizonaAges 18–50 - NCT06946316Recruiting
Dairy or plant drinks for stronger bones with exercise
This trial compares dairy and plant-based drinks to see which is better for bone health when you also do resistance training. If you are a postmenopausal woman or a man 50 or older, you may join to help find out which drink helps bones most.
Saskatoon, SaskatchewanAges Any age - NCT06949930Recruiting
Optimizing child health visits for better nutrition
This trial tests a new way to deliver essential health and nutrition advice to families with young children (ages 1–5) during regular doctor visits. It aims to make sure children get the care they need.
NairobiAges 15 years+ - NCT06950125Recruiting
JUICE HA for age-related muscle loss
This trial tests a dietary supplement called JUICE HA to see if it helps improve muscle strength and function in older adults with age-related muscle loss (sarcopenia). If you qualify, you'll take the supplement and be monitored for any changes.
TaichungAges 65 years+ - NCT06950203Recruiting
Fish oil supplement for sperm quality
This study tests whether a special fish oil supplement (EPAX EVOLVE 05) can improve sperm movement in men with low sperm motility. It may help if you have been told your sperm are not moving well and you are willing to take a sperm test.
OsloAges 18–55 - NCT06950463Recruiting
Circuit training for bone health after menopause
This trial tests whether a specific exercise program (circuit training) can improve bone density in women after menopause who have low bone mass. It may help strengthen bones and reduce fracture risk.
CairoAges 50–60 - NCT06951932Recruiting
Do fatty acids help early memory loss?
This study tests whether a special oil (medium-chain fatty acids) can help people who were recently diagnosed with mild cognitive impairment. If you join, you'll take the oil and be checked to see if it slows down memory decline.
Alessandria, PiedmontAges 18–85 - NCT06955975Recruiting
Pectin supplement for frailty in older adults
This study tests if daily pectin, a fiber found in fruits, can improve strength and health in older adults who are frail or pre-frail. It compares pectin to a placebo over time.
Nottingham, NottinghamAges 65 years+ - NCT06959043Recruiting
Diet and exercise for type 2 diabetes
This study tests if a plant-based diet and exercise program can improve blood sugar control in people with type 2 diabetes. Participants will live in a hospital for 4 weeks to follow the program closely.
São Paulo, São PauloAges 45–70 - NCT06964438Recruiting
Post-surgery electrical muscle stimulation study for colorectal or stomach cancer
This trial tests if using a mild electrical device on your legs after surgery can help you recover faster. It is for people with colorectal or stomach cancer who are having curative abdominal surgery.
Derby, DerbyshireAges 18 years+ - NCT06968299Recruiting
Probiotic supplement for memory, sleep, and mood
This study tests a special probiotic supplement (ExoBDNF) to see if it can improve memory, thinking, sleep, and mood in healthy adults. You may be able to join if you are generally healthy and not taking probiotics.
TaipeiAges 18 years+ - NCT06971822Recruiting
Whey protein for muscle building in older adults
This study tests whether a special whey protein drink helps build muscle in older adults, both at rest and after exercise. It compares a leucine-enriched protein to regular protein to see which works better.
Derby, DerbyshireAges 65 years+ - NCT06974994Recruiting
Antibiotic Use in Newborns and Gut Bacteria Health Study
This study explores how antibiotics given during delivery affect a baby's gut bacteria and long-term health. If you are pregnant or just gave birth and received antibiotics during labor, you and your newborn may be able to join.
Turku, Valitse Maakunta.Ages 2 hours+ - NCT06981936RecruitingPhase 4
Do vitamins help prevent deficiencies while on weight-loss injections?
This trial tests if a daily multivitamin and mineral tablet can prevent nutrient shortages in people taking GLP-1 medicines (like Wegovy or Saxenda) for weight loss. You would take either the vitamin tablet or a placebo (a tablet with no active ingredients) for a year, to see which group has better nutrient levels.
AlexandriaAges 18–65 - NCT06991296Recruiting
Omega-3 supplement study for adults with obesity
This study looks at how omega-3 supplements affect certain fats in the blood of adults with obesity. Researchers want to see if taking these supplements changes these fats in a helpful way.
Kannapolis, North CarolinaAges 45–60 - NCT06991855Recruiting
Nutritional supplements for muscle health in older adults
This trial tests if taking leucine and omega-3 fatty acids can improve muscle mass and strength in older adults with low muscle health. It looks at people who have lost muscle and strength or walk slowly.
Linkou DistrictAges 50–99 - NCT06996171Recruiting
Magnesium and melatonin for insomnia in young adults
This trial compares two natural supplements—magnesium and a melatonin-like compound—to see which works better for helping young adults fall asleep and stay asleep. It is for people with primary insomnia (trouble sleeping without another medical cause).
Kharan, Punjab ProvinceAges 18–40 - NCT06998823Recruiting
Probiotics during cancer therapy study
This study looks at how taking a probiotic supplement affects survival, treatment response, and gut bacteria in people undergoing cancer therapy. It may help you understand if adding probiotics can improve your treatment outcomes.
New Taipei CityAges 20 years+ - NCT07009691Recruiting
Hydrogen water for ME/CFS patients
This trial tests whether drinking hydrogen-rich water can improve heart rate variability (a measure of nervous system function) in people with ME/CFS (myalgic encephalomyelitis/chronic fatigue syndrome). The goal is to see if this simple intervention helps reduce symptoms.
Stony Brook, New YorkAges 18–65 - NCT07014371Recruiting
Iron pills: every other day vs. daily
This trial tests whether taking iron pills every other day works as well as taking them every day. It is for people with iron deficiency anemia who have not used iron recently.
BangkokAges 20 years+ - NCT07015411Recruiting
Neuro supplements for migraine prevention
This trial tests whether a combination of vitamins and supplements can help prevent migraines. It's for adults who have migraines often (at least 6 days per month) and want to try a non-drug option.
MechelenAges 18–75
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Common questions
- Are there clinical trials for supplementation?
- Yes. Clin2 currently lists 680 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.