Search clinical trials for: daily vitamin D supplement

Total 3995 results

Yale University

Not yet recruiting

Evaluation of the Clinical and Psychological Impact of Vitamin D Replacement in Adolescent Females at Risk for Polycystic Ovarian Syndrome (PCOS)

Vitamin D Deficiency | Polycystic Ovarian Syndrome in Adolescent Females
Brigham and Women's Hospital

Completed

Blue Sky Study: Impact of Milk and Vitamin D for Child Growth and Health (BSS)

Vitamin d Deficiency
University of North Carolina, Chapel Hill
North Carolina Translational and Clinical Sciences Institute

Recruiting

Precision Medicine and Physical Function (HMB)

Frailty | Multiple Chronic Conditions | Weakness, Muscle

United States
Augusta University

Completed

Vitamin D Supplement Study for Adolescents (VIP)

Obesity | Overweight | Vitamin D Deficiency

United States
St. Justine's Hospital

Completed

Vitamin D to Reduce Colds and Asthma Attacks in Young Children (DIVA-pilot)

Asthma

Canada
Örebro University, Sweden
Pfizer; University of Hohenheim

Completed

Effect of Omega-3 and Probiotic Dietary Supplements on Elevated High Sensitivity C-reactive Protein (Hs-CRP) as a Marker of Low-grade Inflammation

Inflammation

Sweden
Murdoch Childrens Research Institute

Suspended

Can Vitamin D Treatment Help Treat Moderate to Severe Atopic Dermatitis in Young Children? The D-Vex Pilot Study (D-Vex)

Atopic Dermatitis

Australia
Laval University
Canadian Institutes of Health Research (CIHR)

Completed

Pilot Study on Metabolic Effects of Fish Peptides and Vitamin D (BONITO)

Insulin Resistance | Prediabetes

Canada
National Nutrition and Food Technology Institute

Completed

Vitamin D Supplementation in Physical Performance

Healthy | Athletes

Iran, Islamic Republic of
National Taiwan University Hospital

Completed

Effects of Enteral Supplement Vitamin D Incritically Ill Patients

Critical Illness | Vitamin D Deficiency

Taiwan
Tirang R. Neyestani, Ph.D.
Shahid Beheshti University of Medical Sciences

Completed

Effects of Vitamin D Supplementation on Obesity, Inflammatory and Metabolic Markers

Overweight | Hypovitaminosis D

Iran, Islamic Republic of
University of Surrey
University of Reading

Recruiting

Estimation of the Dietary Requirement for Vitamin D in Ethnic Groups

Vitamin D Deficiency | Immune Health | Muscle Function

United Kingdom
Ege University
Avrasya University

Completed

Impact of Vitamin D Supplementation on COVID-19 Vaccine Response and IgG Antibodies in Deficient Women. (CoVıD-19)

COVID-19 Pandemic | D Vitamin Deficiency | Antibody Hypersensitivity

Turkey
University of Vienna

Unknown

Vitamin D and Resistance Exercise in Elderly (NUTRIAGINGVitD)

Aging

Austria
National and Kapodistrian University of Athens
National Hellenic Research Foundation

Completed

Design and Development of a Novel Food Supplement for Osteoporosis Based on Gut Microbiome Mechanisms (OSTEOME)

Osteopenia | Postmenopausal Osteopenia

Greece
Tirang R. Neyestani, Ph.D.

Unknown

Vitamin D Supplementation in Patients With Depression

Depression

Iran, Islamic Republic of
Mothaffar Rimawi

Terminated

High Dose Vitamin D vs Standard Dose Vitamin D Study

Breast Cancer

United States
Sun Yat-sen University

Unknown

Effect of DHA Supplementation on Cognitive Performance and Growth in Chinese Children

Healthy
McMaster University

Completed

A Randomized Trial of Vitamin D to Reduce Respiratory Infection

Respiratory Infection

Vietnam
Optify
Citruslabs

Completed

A Single Group Study to Evaluate the Effects of a Myo-Inositol and D-Chiro Inositol Supplement on Symptoms Associated With Polycystic Ovary Syndrome and Hormone Imbalance

Polycystic Ovary Syndrome | Hormone Imbalance

United States
University of California, San Diego
University of California, Los Angeles; Gilead Sciences; University of Southern... and other collaborators

Completed

Effect of Vitamin D Supplementation on Bone Turnover Markers During PrEP in MSM (CCTG595VitD)

Patient Adherence

United States
Wake Forest University Health Sciences

Completed

Vitamin D Deficiency and Dysautonomia

Nausea | Vitamin D Deficiency | Orthostatic Intolerance

United States
University College Dublin
University of Ulster

Completed

An Intervention Study to Investigate the Effect of B-vitamin Supplementation for 2-years on Bone Health (Opti-Age)

Bone Health

Ireland
University of Pittsburgh
National Institutes of Health (NIH); National Institute on Aging (NIA)

Completed

Zoledronic Acid for Osteoporosis in the Elderly (ZEST)

Osteoporosis | Bone Loss | Fragility Fractures

United States
Boston Children's Hospital

Completed

Vitamin D Supplementation in Healthy Adolescents

Vitamin D Supplementation

United States
Medical University of South Carolina
Grassroots Health Nutrition Institute; ZRT Laboratory

Active, not recruiting

Vitamin D Supplementation in the Prevention and Mitigation of COVID-19 Infection (VitD-COVID19)

COVID-19 | Vitamin D Deficiency | Respiratory Viral Infection

United States
University of North Carolina, Chapel Hill
National Institute on Drug Abuse (NIDA); National Institute of Mental Health...

Completed

Vitamin D Reabsorption in Adolescents and Young Adults With HIV Infection

HIV Infections

United States, Puerto Rico
Kuang Tien General Hospital

Recruiting

The Effects of Vitamin D Plus Omega-3 Polyunsaturated Fatty Acids in Patients With Episodic Migraine

Episodic Migraine

Taiwan
University College Dublin

Completed

Absorption Kinetics and Efficacy of Vitamin D Enriched Supplements in Older Adults.

Vitamin D Deficiency

Ireland
McGill University

Completed

Fortified Cheese and Yogurt Products and Vitamin D Status in Young Children? Phase 2 (D-KIDS)

Healthy

Canada
Al-Azhar University

Completed

Vitamin D Supplementation and Glycemic Control Improvement Among Type 1 Diabetic Children

Vitamin D Deficiency | Type 1 Diabetes Mellitus

Palestinian Territory, occupied
Universitas Sumatera Utara

Completed

The Use of the 25 (OH) D Saliva Test as a Substitute for the 25 (OH) D Serum Test in Healthy People

Nutritional Deficiency

Indonesia
St. Justine's Hospital

Completed

Bioavailability of Vitamin D in Children and Adolescents With Crohn's Disease

Crohn's Disease

Canada
University of Helsinki
Päivikki and Sakari Sohlberg Foundation, Finland; Lilly Foundation

Completed

Oral Vitamin D Supplementation in Elderly Women

Optimal Vitamin D Administration

Finland
Bambino Gesù Hospital and Research Institute

Completed

DHA and Vitamin D in Children With Biopsy-proven NAFLD (VitD_DHA)

NAFLD | Non Alcoholic Steatohepatitis (NASH)

Italy
King Faisal Specialist Hospital & Research Center

Withdrawn

Magnitude of Changes in 25 OH Vitamin D3 Levels After Vitamin D3 Supplementation

Vitamin D Deficiency

Saudi Arabia
Azienda Ospedaliera Specializzata in Gastroenterologia...

Unknown

Vitamine d Dosage and Constipation

Vitamine d Dosage in Slow Transit Time Constipation

Italy
Medical University of South Carolina
National Center for Research Resources (NCRR)

Completed

Identifying Vitamin D Deficiency in Very Low Birth Weight Infant (VLBW) Infants Part 2

Vitamin D Deficiency | Infant, Very Low Birth Weight | Calcium Deficiency

United States
The Cleveland Clinic

Completed

Vitamin D Replacement in Nonalcoholic Fatty Liver Disease

Nonalcoholic Fatty Liver

United States
Ioannis K. Triantafyllopoulos, MD,MSci,PhD

Completed

Effect of Calcium and Vitamin D Supplementation With and Without Collagen Peptides in Postmenopausal Women With Osteopenia

Osteopenia | Postmenopausal Osteopenia
Centre Hospitalier Departemental Vendee

Completed

Monocentric Randomized Study, Assessing the Interests of the Determination of Vitamin D in Prison Population. (Vitamine D)

Male Prisoner

France
Hospital Clinic of Barcelona
Abbott

Terminated

Effects of a Supplement Enriched in Hydroxymethylbutyrate and Vitamin D on Muscle Strength in Hip Fracture

Hip Fractures

Spain
University of Illinois at Chicago
Abbott

Completed

Identification of Markers for Determining the Efficacy of Vitamin D Receptor Activator Therapy in Stage 3/4 CKD Patients

CKD Stage 3/4

United States
Shih Chien University
Shin Kong Wu Ho-Su Memorial Hospital

Completed

Effects of Vitamin D Supplementation on Immune Function in Infants

Vitamin D Deficiency

Taiwan
Klinikum Emden

Completed

Vitamine D in Post-COVID Patients (VD-PCS)

Post COVID

Germany
Ain Shams University

Recruiting

The Efficacy of Nigella Sativa Versus VitaminD3 as Supplement Therapy in Coronavirus Disease 2019 (COVID-19) (COVID-19)

Covid19

Egypt
Shanghai JMT-Bio Inc.

Active, not recruiting

Efficacy and Safety of JMT103 in Patients With Giant Cell Tumor of Bone

Giant Cell Tumor of Bone

China
Kyowa Kirin, Inc.
Kyowa Kirin Co., Ltd.

Completed

Efficacy and Safety of Burosumab (KRN23) Versus Oral Phosphate and Active Vitamin D Treatment in Pediatric Patients With X Linked Hypophosphatemia (XLH)

X-Linked Hypophosphatemia

Korea, Republic of, Canada, United States, Australia, Japan, United Kingdom, Sweden
University of Guelph

Completed

Vitamin D and Omega-3 Inhibit Metabolic Syndrome

Hypertension | Obesity | Type 2 Diabetes Mellitus | Hyperlipidemia

Canada
University Hospital, Angers

Completed

GAit, MEmory, Dietary and Vitamin D (GAME-D2)

Memory Complaint Without Cognitive Decline

France

Search clinical trials for: daily vitamin D supplement

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