Clinical trials: Nutritional Supplementation
Vitamin D Deficiency
Controlled Trial of Prenatal Vitamin D3 Supplementation to Prevent Vitamin D Deficiency in Mothers and Their Infants
The purpose of this research study is to compare the effects of higher dose vitamin D with commonly recommended dose in pregnant women to see which is better in achieving and/or maintaining sufficient vitamin D blood levels…
- Trial name
- PA 03-103 (NCT00610688)
- Testing
- Prenatal Vitamin, Cholecalciferol (Vitamin D3)
- Where
- 2 sites in United States, United Arab Emirates
- Volunteers
- 192 people, healthy volunteers welcome
- Sponsor
- Children's Hospital Medical Center, Cincinnati
Dietary Supplements
A Study Evaluating Quality of Life Parameters Following Use of Emergen-C
The purpose of this study is to determine how Emergen-C use can improve quality of life (QoL) in a real-world setting to help consumers and healthcare professionals understand the benefits of taking Emergen-C on a routine or…
- Trial name
- NCT06654089
- Testing
- Emergen-C Core Super Orange Powder
- Where
- United States
- Volunteers
- 299 people, healthy volunteers welcome
- Sponsor
- HALEON
Traumatic Brain Injury (TBI), Chronic Traumatic Encephalopathy (CTE)
The Effects of Fish Oil Supplementation on the Brain Health of Collegiate Football Athletes
Determine if the daily docosahexaenoic acid (DHA)/eicosapentaenoic acid (EPA) supplement will reduce serum levels of biomarkers of sub-concussion injuries over a course of American football season among collegiate football…
- Trial name
- NCT04796207
- Testing
- Fish Oil (DPA+EPA 2:1 ratio) Capsules, High Oleic Safflower Oil Capsules
- Where
- United States
- Volunteers
- 38 people, healthy volunteers welcome
- Sponsor
- University of Arizona
Vitamin D Deficiency, Pre-Eclampsia
Effect of Vitamin D3 Supplementation in Pregnancy on Risk of Pre-eclampsia
Vitamin D deficient pregnant ladies were selected and randomized into 2 groups for routine daily dose of multivitamin (400IU vitamin D3) versus maximum safest treatment daily dose (4000IU vitamin D3).
- Trial name
- NCT03101150
- Testing
- 400 IU Vitamin D3, 4000 IU Vitamin D3
- Volunteers
- 179 people, healthy volunteers welcome
- Sponsor
- King Fahad Medical City
Premature Atrial Contraction
Magnesium Supplementation for the Prevention of Supraventricular Arrhythmias
The primary objective of this research is to determine whether oral magnesium supplementation in healthy, community-living individuals will be associated with reductions in the burden of arrhythmias in the upper chambers of the…
- Trial name
- NCT02837328
- Testing
- Oral Magnesium Supplement
- Where
- United States
- Volunteers
- 59 people, healthy volunteers welcome
- Sponsor
- University of Minnesota
Cognitive Impairment, Dementia
COcoa Supplement and Multivitamin Outcomes Study for the Mind
The parent trial (COcoa Supplement and Multivitamin Outcomes Study, COSMOS; NCT02422745) is a randomized clinical trial of cocoa extract supplement (containing a total of 500 mg/d flavanols, including 80 mg.
- Conditions
- Cognitive Impairment, Dementia, Aging
- Trial name
- COSMOS-Mind (NCT03035201)
- Where
- United States
- Volunteers
- 2,262 people, healthy volunteers welcome
- Sponsor
- Wake Forest University Health Sciences
Fatigue, Stress, Job
Effects of Probiotics on Gut Microbiota, Endocannabinoid and Immune Activation and Symptoms of Fatigue in Dancers
The aim of the planned research is to assess the dynamics of changes in the elements of the gut-brain axis (GBA), the cytokine profile and the endocannabinoid system markers, after dietary supplementation with probiotics…
- Trial name
- NCT05567653
- Testing
- Lactobacillus helveticus Rosell-52 and Bifidobacterium longum Rosell-175 (Sanprobi Stress)
- Where
- Poland
- Volunteers
- 26 people, healthy volunteers welcome
- Sponsor
- Poznan University of Physical Education
Impaired Fasting Glucose
The Effect of a Nutritional Supplement on Post Prandial Glucose and Lipids in an Adult Population
The primary aim of this study is to evaluate the effect of a fibre rich health food drink on the post prandial glucose and triglyceride peak in healthy overweight adults with impaired fasting glucose (IFG).
- Trial name
- NCT02119325
- Testing
- 25% fibre, 0% fibre
- Where
- India
- Volunteers
- 96 people, healthy volunteers welcome
- Sponsor
- GlaxoSmithKline
Aging
Dietary Nitrate and Physiological Aging
The main purpose/s of this study is to examine the effects of 4 weeks of dietary nitrate supplementation on peripheral chemoreceptor sensitivity, spontaneous baroreflex sensitivity, and blood pressure responsiveness to a variety…
- Trial name
- NCT02593305
- Testing
- Super Beets
- Where
- United States
- Volunteers
- 23 people, healthy volunteers welcome
- Sponsor
- Darren P Casey
Functional Constipation
Dose-ranging Efficacy of Polydextrose Supplement on Colonic Transit Time and Symptoms in Adults With Functional Constipation
This study will investigate the effectiveness of Polydextrose, a dietary fiber, at decreasing Colonic Transit Time and the gastrointestinal symptoms of Functional Constipation.
- Trial name
- NCT02314936
- Testing
- Litesse powder containing 12 g polydextrose, Litesse powder containing 8 g polydextrose, Litesse powder containing 4 g polydextrose
- Where
- Canada
- Volunteers
- 192 people, healthy volunteers welcome
- Sponsor
- KGK Science Inc.
Hypercholesterolemia
Effects of a Supplement Derived From Palm Oil on Cholesterol Levels in the Blood
Elevated blood cholesterol, and particularly LDL cholesterol, is a risk factor for heart disease. Tocotrienols are naturally-occurring compounds in foods that may have beneficial effects on blood cholesterol.
- Trial name
- TRF (NCT02634606)
- Testing
- Gamma Delta Tocotrienols - Low Dose, Gamma Delta Tocotrienols - High Dose, Sugar Pill
- Where
- United States
- Volunteers
- 13 people, healthy volunteers welcome
- Sponsor
- University of California, Los Angeles
Healthy
Whole Body Protein Metabolism of a Whey/EAA Supplement Using Continuous Oral Stable Isotopes
To evaluate the validity of a continuous oral sip-feeding method of stable isotope tracer for the evaluation of whole-body protein metabolism in response to two different doses of an EAA/whey protein supplement (Low=6.3g and…
- Trial name
- NCT04612400
- Testing
- Oral amino acid tracer
- Where
- United States
- Volunteers
- 8 people, healthy volunteers welcome
- Sponsor
- University of Arkansas
Infection, Pregnancy
Effects of Oral Probiotic Supplementation on Group B Strep (GBS) Rectovaginal Colonization in Pregnancy
The investigators wish to determine if oral probiotic supplementation during the second half of pregnancy decreases maternal GBS recto-vaginal colonization at 35-37 weeks' gestational age, thereby decreasing need for maternal…
- Trial name
- NCT01479478
- Testing
- Probiotic dietary supplement
- Where
- 3 sites in United States
- Volunteers
- 251 people, healthy volunteers welcome
- Sponsor
- Stanford University
Vitamin D Deficiency
Safety of Vitamin D Supplementation in Older Persons
This study will evaluate the safety over 6 months of two different doses of vitamin D (cholecalciferol) in men and women age 65 and older. It will also evaluate if supplementation with vitamin D improves physical performance.
- Trial name
- NCT00681590
- Testing
- cholecalciferol (vitamin D)
- Where
- United States
- Volunteers
- 105 people, healthy volunteers welcome
- Sponsor
- University of Miami
Dehydration, Electrolyte Imbalance
Buoy Electrolyte Study on Hydration Status of Active Men and Women
Buoy is an all-natural, organic, FDA compliant dietary electrolyte supplement that can be dissolved in 8-12oz water (or other liquid) and provide electrolytes in servings of 1/3 teaspoon.
- Conditions
- Dehydration, Electrolyte Imbalance, Electrolyte Depletion, Fluid and Electrolyte Imbalance
- Trial name
- NCT05768789
- Testing
- Buoy Electrolyte, Water only, Nuun Electrolyte
- Where
- 2 sites in United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University of Pittsburgh
Sleep, Mood
Investigational Test of a New Sleep Supplement
This study seeks to observe the effects of a proprietary spearmint extract and green tea blend on sleep quality and duration. The study observes the effect of the supplement regarding sleep quality, and mental health.
- Conditions
- Sleep, Mood, Cognitive Performance
- Trial name
- InTeNSS (NCT03567343)
- Testing
- Proprietary Spearmint Extract Blend, Control
- Where
- United States
- Volunteers
- 105 people, healthy volunteers welcome
- Sponsor
- University of Arizona
Immunity to Oral Rotavirus Vaccine, Immunity to Oral Polio Vaccine
Zinc and/or Probiotic Supplementation of Rotavirus and Oral Polio Virus Vaccines
Background: Strategies are needed to improve oral rotavirus vaccine (RV), which provides suboptimal protection in developing countries.
- Conditions
- Immunity to Oral Rotavirus Vaccine, Immunity to Oral Polio Vaccine, Shedding of Oral Rotavirus Vaccine
- Trial name
- NCT01616693
- Testing
- Probiotic, Zinc, Rotavirus vaccine
- Where
- India
- Volunteers
- 620 people, healthy volunteers welcome
- Sponsor
- PATH
Vitamin D Deficiency
Personalized Vitamin D Supplementation in European and African Americans
The proposed study is a randomized, double-blind, controlled, multi-center clinical trial of six months of daily oral vitamin D3 (cholecalciferol).
- Trial name
- NCT02362269
- Testing
- Vitamin D
- Where
- 2 sites in United States
- Volunteers
- 169 people, healthy volunteers welcome
- Sponsor
- University of Wisconsin, Madison
Obesity, Insulin Resistance
Vitamin D Supplementation to Obese Chinese Males
Hypothesis: Oral Supplementation of Vitamin D can Reduce Hypersecretion of Parathyroid Hormone and Insulin Resistance in Obese Chinese Males.
- Trial name
- NCT01781169
- Testing
- Oral supplementation of vitamin D
- Where
- China
- Volunteers
- 43 people, healthy volunteers welcome
- Sponsor
- Shenzhen Center for Chronic Disease Control
Multiple Sclerosis, Relapsing-remitting
Pharmacokinetics of Vitamin D in Multiple Sclerosis and in Health
This is a pilot study of oral vitamin D supplementation to determine if patients with Multiple Sclerosis (MS) and healthy individuals attain a similar increase in serum 25-hydroxyvitamin D levels.
- Trial name
- NCT01667796
- Testing
- Vitamin D3
- Where
- 2 sites in United States
- Volunteers
- 57 people, healthy volunteers welcome
- Sponsor
- Johns Hopkins University