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
- NCT07092930RecruitingPhase 3
Supplements for athletic performance and health
This trial tests if beta-alanine and sodium bicarbonate supplements can improve your physical performance and certain health markers. If you are a healthy, experienced athlete, this study might help you understand how these supplements affect your body.
Poznan, WielkopolskaAges 16–40 - NCT07773142Recruiting
Protein drink and exercise for muscle gain
This study looks at whether a special protein drink can help build muscle better than a placebo when combined with strength training. If you are a healthy young adult who is new to weight lifting, this trial may help you build muscle more effectively.
Birmingham, BirminghamAges 18–35 - NCT07654946Recruiting
Taurine supplement and muscle endurance in healthy adults
This study tests whether taking a taurine supplement can help your muscles work longer before getting tired. Researchers will use a light sensor on your leg to see how muscles use oxygen.
Baton Rouge, LouisianaAges 18–40 - NCT07634133Enrolling by invitation
Omega-3 fatty acids and red blood cell health in active men
This study tests whether omega-3 supplements (healthy fats found in fish) change the structure of your red blood cells in ways that might improve how your body works. You'll take supplements for several weeks while researchers measure changes in your blood.
KatowiceAges 18–60 - NCT07504068Recruiting
Exercise and supplement for metabolic health in overweight adults
This trial tests whether a combination of physical exercise and a nutritional supplement can improve body composition, metabolism, and overall health in adults who are overweight and have early signs of metabolic problems. It may help you if you are looking for a non-drug approach to boost your health.
Valencia, ValenciaAges 50–65 - NCT07303543Recruiting
Protein and exercise to prevent muscle loss after weight-loss surgery
This trial tests whether taking protein-collagen supplements and doing resistance exercises can help people maintain muscle after bariatric surgery. It may be a good fit if you are between 20 and 50 years old, have a BMI of 35 or higher, and are not pregnant or in menopause.
Istanbul, FatihAges 20–50 - NCT06835738Recruiting
Daily multivitamin for pregnant women in Uganda
This study is testing whether giving a daily multivitamin and mineral supplement to pregnant women in Uganda helps improve their health and their baby's health. It is comparing this new approach to the current standard of care.
LyantondeAges birth–80 years - NCT06674122Enrolling by invitation
Vitamin D supplements for preterm babies
This trial tests whether giving preterm babies (born at 28-34 weeks) a higher dose of vitamin D by mouth helps them grow and stay healthy. It may be an option if your baby is already feeding well and doesn't have certain other health problems.
Jakarta, Central JakartaAges 6 months–8 months - NCT06481852RecruitingPhase 1
Gut bacteria transplant for pulmonary arterial hypertension
This trial tests whether a special combination of antibiotics, fecal transplant (gut bacteria from healthy donors), and a fiber supplement can help people with pulmonary arterial hypertension (PAH). It aims to see if improving gut health can improve PAH symptoms and overall well-being.
Minneapolis, MinnesotaAges 18–75 - NCT06399861Recruiting
Humidity in incubators for very premature babies
This study looks at how different humidity levels in incubators affect very premature babies born before 25 weeks of pregnancy. It aims to find the best conditions to help their delicate skin and overall health.
Birmingham, AlabamaAges birth–1 day - NCT06079918RecruitingPhase 3
Vitamins and minerals for pregnancy anemia prevention
This trial tests whether taking a daily multivitamin and mineral supplement during pregnancy can prevent anemia in mothers living in Tanzania. If you are pregnant, under 20 weeks along, and at least 18 years old, you may be able to join.
Dar es SalaamAges 18 years+ - NCT07594444Recruiting
Whey Protein and Adaptogenic Supplements for Active Women
This study tests whether whey protein combined with adaptogenic herbs (natural stress-reducing supplements) can improve athletic performance and recovery in physically active women. You'll take supplements for several weeks while maintaining your normal training routine, and researchers will measure changes in your strength and fitness.
Brighton, East SussexAges 18–45 - NCT07793695RecruitingPhase 2
Zinc plus immune therapy for advanced liver cancer
This study tests whether adding zinc supplements to standard targeted and immunotherapy improves outcomes for people with advanced liver cancer. Zinc may help the immune system work better against cancer cells.
Hefei, AnhuiAges 18–75 - NCT06531460Recruiting
Omega-3 nutrition before lung cancer surgery
This study tests whether a special nutrition drink with omega-3 (a healthy fat found in fish) can help people recover better after lung cancer surgery. You may qualify if you are about to have lung removal surgery.
Mexico CityAges 18 years+ - 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 - NCT07630584Recruiting
How a New Infant Formula Supplement Affects Healthy Babies
This study tests a dietary supplement for healthy newborns to see if it helps them grow well and digest food properly. Researchers will collect stool samples and track the baby's health over time.
Cavite City, ManilaAges 2 weeks–4 weeks - NCT07625202Recruiting
Creatine Supplements During GLP-1 Weight-Loss Therapy
This trial tests whether adding creatine (a natural muscle-building supplement) helps preserve muscle and strength while taking GLP-1 medications like Ozempic or Wegovy. These medications help with weight loss but can sometimes cause muscle loss, so researchers want to see if creatine prevents that.
Saskatoon, SK - SaskatchewanAges 18 years+ - NCT07600008RecruitingEarly Phase 1
Probiotics as a supplement for reflux disease management
This early-stage trial tests whether a probiotic supplement can help support treatment of reflux disease (GERD) in patients already taking a standard reflux medication. Researchers want to see if adding probiotics might improve symptoms or overall digestive health.
OlomoucAges 40–55 - NCT05708183Recruiting
Micronutrient supplements for pregnant women in Ethiopia
This study checks whether giving pregnant women multiple micronutrient (vitamin and mineral) supplements improves outcomes for mothers and babies. You may also be asked to participate during routine antenatal care visits in participating health facilities.
Ītang, Gambella RegionAges 15–49 - NCT06687343Recruiting
Do amino acids help maintain muscle in young men?
This study looks at how certain amino acids (building blocks of protein) help maintain muscle mass. Healthy young men eat a special diet and have their muscle protein production measured to see if non-essential amino acids matter for keeping muscles strong.
MaastrichtAges 18–35 - NCT06780813Recruiting
High flow oxygen to reduce infections in obese gynecologic cancer patients
This trial tests whether giving high flow oxygen during and after surgery can lower the risk of infections in obese women with gynecological cancer. It may help improve recovery after surgery.
AthensAges 18–85 - NCT07451951Recruiting
Preventing Malnutrition in Infants: Comparing Two Nutrient Supplement Amounts
This study tests whether a small or medium amount of a special nutrient supplement can help prevent malnutrition in babies 6–12 months old. It is for families already in a support program (BISP/BNP) and aims to find the best dose to keep children healthy.
Peshawar, Khyber PakhtunkhwaAges 6 months–8 months - NCT07453212Enrolling by invitation
Food supplement for dry eye caused by meibomian gland issues
This trial tests a food supplement designed to improve dry eye symptoms by targeting the microbiome. It may help if you have dry eye due to meibomian gland problems and are not using contact lenses or certain other eye treatments.
IstanbulAges 18–65 - NCT05525039Recruiting
Vibration plus supplement trial for weak muscles and nerves
This trial studies whether a vibration treatment combined with an HMB supplement can improve weak muscle quality and reduce early nerve-to-muscle connection problems. It is mainly for older adults who already have signs of low muscle strength or function.
Hong KongAges 60 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.