Clinical trials
Supplementation clinical trials
Below are recruiting supplementation clinical trials, each written for real people, not researchers. We’re tracking 694 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07484061Recruiting
Drinkable supplement for hair loss in women on weight-loss drugs
This trial tests if a special drinkable supplement can help prevent or reduce hair loss in women who are taking a GLP-1 or GIP receptor agonist (a type of weight-loss or diabetes medication). The study looks for women who have just started this medication or have been on it for less than 3 months.
Madrid, MadridAges 35 years+ - NCT07667205Enrolling by invitationPhase 1
Liposomal vs. ferrous iron for preventing anemia in preterm babies
This trial compares two types of iron supplements—liposomal iron and ferrous iron—to see which works better at preventing iron deficiency anemia in premature infants. It aims to find a safer or more effective option for these fragile newborns.
CairoAges 2 weeks–3 weeks - NCT07024238Enrolling by invitation
Short-chain fatty acid supplement for kidney transplant patients
This study tests whether taking a short-chain fatty acid (a type of fiber-like substance) supplement can improve gut health in people who have had a kidney transplant. It may help keep the transplant working well.
Martin, SlovakiaAges 18 years+ - NCT07511088Recruiting
Study of a supplement for mild stress in healthy adults
This study tests a dietary supplement for people who experience mild stress or anxiety at least once a week. You will fill out surveys on your phone or computer to see if the supplement helps you feel calmer.
San Francisco, CaliforniaAges 18–60 - NCT06481696Recruiting
Resveratrol to improve IVF outcomes for unexplained infertility
This study tests whether a natural supplement called resveratrol can improve the success of IVF or ICSI for couples with unexplained infertility. You will take resveratrol during your IVF cycle to see if it helps with egg quality and pregnancy rates.
PalermoAges 18–40 - NCT06075134Recruiting
EMG-guided vs. standard Botox for gummy smile treatment
This trial compares two ways of giving Botox for a gummy smile: one using a machine that measures muscle activity (EMG‑guided) and the usual method. The goal is to see which approach works better.
CairoAges 18–50 - NCT06087783Recruiting
Nutrition supplement study for gynecologic cancer patients on chemo
This study tests whether a special protein, leucine, and vitamin D drink can help women with gynecologic cancer stay stronger during platinum-based chemotherapy. If you're starting your first chemo cycle and can do most daily activities, you may be eligible.
Pavia, ItalyAges 18 years+ - NCT07161726RecruitingPhase 1/Phase 2
Cocoa and exercise for older adults
This trial tests whether eating cocoa can boost the benefits of a supervised exercise program for older adults who walk a bit more slowly. You could help find out if this natural product makes exercise work better.
Birmingham, AlabamaAges 55 years+ - NCT07130513Recruiting
Can krill oil help muscle function in long-term conditions?
This study is testing whether taking krill oil supplements can help improve muscle strength and function in adults with long-term health conditions like diabetes, arthritis, or heart disease.
Glasgow, LanarkshireAges 18 years+ - NCT07457333Enrolling by invitationPhase 1/Phase 2
Beta-sitosterol for recovery after a brain aneurysm bleed
This study tests a natural compound called beta-sitosterol (from Gastrodia elata) to see if it can help people recover better after a brain aneurysm bleed. You must have had your aneurysm treated within 48 hours and be in relatively stable condition.
Hangzhou, ZhejiangAges 18–75 - NCT07433686Recruiting
Saskatoon Berry Juice for Muscle Recovery
This trial tests whether Saskatoon berry juice helps muscles recover after exercise. It involves healthy adults aged 18–35 who can exercise safely.
Saskatoon, SaskatchewanAges 18–35 - NCT07443280Recruiting
Gut health supplement study for dialysis patients
This trial tests whether a special blend of probiotics and prebiotics (called a synbiotic) can improve gut health and reduce harmful waste products in the blood for people on hemodialysis.
Taichung, Wuqi DistrictAges 18 years+ - NCT07442864Recruiting
Study of a supplement for hunger and weight
This trial tests a dietary supplement designed to support leptin, a hormone that helps control appetite. If you're an adult curious about how it affects your hunger and weight, you may be able to join.
New York, New YorkAges 18 years+ - NCT06919718Recruiting
Vitamin D supplements for new mothers in Idaho
This trial tests whether taking vitamin D supplements can improve mental health and change the nutrients in breast milk for mothers living in Idaho.
Coeur d'Alene, IdahoAges 18–64 - NCT06939244Recruiting
Krill oil for muscle recovery after exercise in older adults
This trial tests whether taking krill oil helps people 60 and older recover faster from muscle-straining exercise. If you do light resistance exercise less than 1 hour per week and have no major health issues, you may qualify.
Glasgow, OtherAges 60 years+ - NCT07383974Recruiting
12-week study: how diet affects skin and health
This trial tests whether eating more fruits and vegetables for 12 weeks can improve your skin and how you feel physically. It uses a special light scanner to measure skin health.
Shanghai, Shanghai MunicipalityAges 18 years+ - NCT07355634Recruiting
Terraflora daily care for gut health
This trial tests if a daily probiotic supplement, Terraflora, can improve gut health in people with an imbalance of gut bacteria (dysbiosis). You may join if you're an adult with a stool test showing dysbiosis and are not taking certain other medications or supplements.
Richmond, VirginiaAges 25 years+ - NCT06546189Recruiting
Probiotics for overactive bladder treatment
This study tests whether a daily probiotic supplement (Lactobacillus) can help reduce overactive bladder symptoms. It compares the supplement to a placebo in a randomized trial.
ViennaAges 18 years+ - NCT06971224RecruitingPhase 2
Can a vitamin B3 supplement improve sleep?
This study tests whether a daily supplement called nicotinamide riboside (a form of vitamin B3) can improve sleep quality in healthy adults. If you are between 40 and 60 years old, have normal sleep, and are not taking sleep aids, you may be able to join.
BergenAges 40–60 - NCT07592013Enrolling by invitation
Ancestry Supplements for Fatty Liver Disease
This study tests whether a special supplement (made from cacao, nopal, and crickets) can help improve fatty liver disease in people with excess body fat. Fatty liver disease happens when fat builds up in the liver, and this trial investigates whether these natural ingredients can reduce that buildup.
Guadalajara, GuadalajaraAges 18–60 - NCT06531863RecruitingEarly Phase 1
Curcumin and green tea supplement for mood improvement
This study tests whether taking curcumin (found in turmeric) and EGCG (found in green tea) can improve mood and increase a brain protein called BDNF, which may help with depression. It is for adults ages 18 to 50 with mild to moderate depression symptoms.
Auburn, AlabamaAges 18–50 - NCT07208279Recruiting
Cognitive Vitality Study: Can Axolt help memory?
This clinical trial is testing whether a special dietary supplement called Axolt can help keep your memory and thinking sharp as you get older. It is for healthy adults 55 and older who live independently and have no major memory problems.
West Palm Beach, FloridaAges 55 years+ - NCT07352618Enrolling by invitation
Omega-3 supplements for blood sugar and cholesterol in type 2 diabetes
This study tests whether adding omega-3 supplements to your regular diabetes treatment can improve blood sugar control and cholesterol. It may help people with type 2 diabetes who are already on medication.
DhakaAges 25–75 - NCT06847139Recruiting
Zinc vs. folic acid for high homocysteine in kidney dialysis
This trial tests whether zinc supplements can lower high homocysteine levels better than folic acid in people with chronic kidney disease who are on hemodialysis. It aims to find a simple, safe way to help protect your heart and blood vessels.
ChittagongAges Any age
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Common questions
- Are there clinical trials for supplementation?
- Yes. Clin2 currently lists 694 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.