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
- NCT06568315RecruitingPhase 3
Calcium plus multivitamins for mother and baby
This study tests whether taking a daily multivitamin with calcium, in addition to standard prenatal vitamins, improves iron levels and health for you and your baby. You would switch from your usual iron folic acid pills to the study supplements.
OuagadougouAges 15 years+ - NCT06138106Recruiting
Nutritional supplement for collagen in young adults
This study tests a nutritional supplement designed to help your body make more collagen, which is important for skin, joints, and bones. It is for healthy young adults to see if the supplement can safely boost collagen production.
Davis, CaliforniaAges 18–30 - NCT06102044RecruitingPhase 3
Zinc for young infants with severe infection in Tanzania
This study tests whether giving zinc supplements to very young babies (under 2 months) with severe infections helps them recover better. It takes place in Tanzania and involves adding zinc to their regular care.
Dar es SalaamAges birth–2 months - NCT05967507Recruiting
Testing oxygen flow during infant airway tube placement
This trial studies how different oxygen flow rates affect breathing during the process of placing a breathing tube in babies. It may help clinicians choose safer oxygen settings during routine and urgent (but not life-threatening) airway management.
Philadelphia, PennsylvaniaAges Up to 12 months - NCT05877846Recruiting
Personalized care to improve physical function in older adults
This study looks at precision (personalized) approaches to help older adults improve physical function. It may include giving a specific supplement depending on lab results, and it requires regular study visits and ability to complete procedures.
Chapel Hill, North CarolinaAges 65–85 - NCT05782829Recruiting
L-tyrosine to reduce stress during outpatient hernia surgery
This trial studies whether an L-tyrosine supplement before surgery can reduce stress or anxiety around the time of anesthesia and recovery. It is for adults having outpatient surgery for an inguinal hernia under general anesthesia.
MonacoAges 18–75 - NCT05097365Enrolling by invitation
Testing a methyl-donor supplement to study lupus metabolism
This study looks at whether a “methyl-donor” nutrient supplement changes metabolism (methylation) in people with lupus who are also in the childbearing age range and have low-to-moderate disease activity. It may help researchers understand why lupus acts differently in some people and how diet-related pathways could affect symptoms.
São PauloAges 18–45 - NCT04883515Recruiting
Glutamine drink for insulin resistance and bowel symptoms
This trial studies whether taking an oral glutamine supplement can improve insulin resistance and reduce bowel-related problems in people with obesity and irritable bowel syndrome. It may help your blood sugar regulation and digestive comfort if you meet the criteria.
RouenAges 18–65 - NCT07854223Recruiting
Pre-run supplements during a 5 km treadmill run
This study tests whether certain nutritional supplements taken before running affect performance during a 5 km treadmill run. Participants will run at a set pace, and some will wear a continuous glucose monitor to track sugar levels.
St Louis, MissouriAges 18–35 - NCT07863973Recruiting
Dietary supplement for hot flashes in menopause
This trial tests whether a dietary supplement can reduce hot flashes in women who are in late perimenopause or early postmenopause. If you are experiencing frequent hot flashes, this could help you find relief.
Elche, AlicanteAges 42–60 - NCT07864662Recruiting
Food and vitamin D for healthy school children
This study tests if adding trout fish, cow milk with egg, and vitamin D to children's diets can improve their vitamin D levels, nutrition, and brain function. It is for healthy children aged 6-12 who go to certain schools in Pakistan.
Karachi, SindhAges 6–12 - NCT07843095Recruiting
Protein supplement for muscle health during menstrual cycle
This study tests whether taking a protein supplement during the luteal phase of your menstrual cycle can help prevent muscle breakdown. It may help women who want to maintain muscle strength and understand how their cycle affects their body.
Conroe, TexasAges 18–35 - NCT07831317Recruiting
Probiotic for digestive comfort in women
This study tests a daily probiotic supplement to see if it helps with gas and bloating in women who also have signs of hormonal imbalance. If you qualify, you'll take the supplement and track your symptoms over the study period.
San Francisco, CaliforniaAges 25–45 - NCT07809152Recruiting
Collagen supplements after weight-loss surgery: muscle and body image
This study tests whether taking collagen supplements after weight-loss surgery helps preserve muscle and improve how you feel about your body. It will compare people who take the supplement with those who don't.
Bursa, YıldırımAges 18–65 - NCT07805993Recruiting
Test of Egg White Pudding for Older Adults in Personal Care Homes
This study tests whether adding an egg white pudding to the diet is possible for older adults living in personal care homes, to help improve their nutrition.
Winnipeg, ManitobaAges 50 years+ - NCT07806838Recruiting
Dietary supplements to preserve muscle during GLP-1 weight loss
This study looks at whether certain dietary supplements can help preserve muscle mass while you are taking a GLP-1 medication for weight loss. You would take the supplements or a placebo for a period while continuing your GLP-1 treatment, and the researchers will measure changes in your muscle and strength.
Los Angeles, CaliforniaAges 18 years+ - NCT07787026Recruiting
Fiber supplement study for gut health
This trial is testing the short-term effects of a multi-fiber supplement on gut health. If you are generally healthy and meet the dietary restrictions, you may be able to participate.
Providence, Rhode IslandAges 18 years+ - NCT07777328Recruiting
5-HTP for ADHD traits and eye movements in adults
This study looks at how a supplement called 5-HTP (a natural amino acid) affects attention and eye movements in adults. You will receive either 5-HTP or a placebo to see if it changes ADHD-like traits.
Sheffield, South YorkshireAges 18–65 - NCT07783646Recruiting
Nutritional supplements for school children to reduce hunger and improve focus
This study tests whether nutritional supplement packs can help reduce hunger and improve eating habits and concentration in school. If your child is in grades 3–9 and can get the supplements, they may benefit from better focus and nutrition during the school day.
Chiayi CityAges 9–15 - NCT07774520RecruitingPhase 2
Lower dose of lazertinib plus magnesium to prevent nerve damage in advanced lung cancer
This trial tests a lower starting dose of the targeted therapy drug lazertinib combined with magnesium supplements to prevent a common side effect (peripheral neuropathy) in people with advanced lung cancer caused by certain EGFR mutations. The goal is to see if this approach keeps the drug effective while reducing nerve damage symptoms like numbness or tingling.
Seoul, Gang-nam GuAges 19 years+ - NCT07768423Recruiting
Omega-3 supplements and red blood cell health in soccer players
This study looks at how taking omega-3 supplements (from fish oil) affects the red blood cells of soccer players. It might help improve their overall health and performance.
Katowice, Mikolowska 72aAges 16–35 - NCT07760493Enrolling by invitation
Zinc supplements before and after colon surgery in children
This study is testing whether giving children zinc supplements around the time of colon surgery helps them recover faster and have fewer problems. It may help their body heal better after the operation.
Alexandria, Alexandria GovernorateAges 1 month–18 years - NCT07766980RecruitingPhase 2
Nutritional supplement for quality of life in Duchenne muscular dystrophy
This study tests whether a daily nutritional supplement called VM100 can improve quality of life for people with Duchenne muscular dystrophy. If you are 8 or older and your medications have been stable for at least 3 months, you may be able to participate.
Gainesville, FloridaAges 6 years+ - NCT07753174Recruiting
Omega-3 supplement study for healthy adults
This study tests a supplement containing omega-3 fats to see how it affects levels of DHA and EPA in your blood. If you're a healthy adult, you might join to help learn if this supplement can boost these important fats.
Las Vegas, NevadaAges 18–65
Hear when a new Supplementation trial opens
We’ll email you when one opens — at most once a week, no account needed, unsubscribe anytime.
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.