Not applicableTemporarily pausedNCT04339530What this trial is testingVitamin D and Type 2 Diabetes Risk in UK AdultsWho this might be right forOverweightObesity Liverpool Hope University 300
Not applicableStudy completedNCT03383744What this trial is testingUsing Stable Isotopes to Assess the Effectiveness of Vitamin A Supplementation in CameroonWho this might be right forVitamin A Deficiency Centre for Food and Nutrition Research, Yaounde 104
Not applicableStudy completedNCT01706419What this trial is testingFortified Rice for School Children in CambodiaWho this might be right forMicronutrient Status Institut de Recherche pour le Developpement 9,500
Not applicableStudy completedNCT01634607What this trial is testingBone Health and Vitamin D StatusWho this might be right forOsteopeniaVitamin D DeficiencyHIV Infection Thai Red Cross AIDS Research Centre 235
Not applicableEnrolling By InvitationNCT05323292What this trial is testingVitamin A Status in Patients With Vocal Fold LeukoplakiaWho this might be right forVitamin AVitamin A DeficiencyLeukoplakia+1 more University of Wisconsin, Madison 90
Not applicableStudy completedNCT02996513What this trial is testingAssessing Model Parameters for Applying the Retinol Isotope Dilution (RID) MethodWho this might be right forVitamin A DeficiencyMalariaInflammation Wageningen University 60
Not applicableStudy completedNCT06705582What this trial is testingOASIS Study: Vitamin D Deficiency Prevention Among Older Adults in IrelandWho this might be right forVitamin D Deficiency University College Cork 117
Early research (Phase 1)WithdrawnNCT02422784What this trial is testingEffects of Vitamin D Fortification on Vitamin D Metabolite Profiles and Status in Vitamin D Insufficient IndividualsWho this might be right forVitamin D Deficiency University of Manitoba
Not applicableStudy completedNCT00082420What this trial is testingRetinol Equivalence of Plant Carotenoids in ChildrenWho this might be right forVitamin A Deficiency National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) 32
Not applicableStudy completedNCT01672099What this trial is testingEffects of Dairy on Vitamin K-statusWho this might be right forVitamin K-statusVascular Health Maastricht University Medical Center 62
Not applicableStudy completedNCT00267540What this trial is testingThe Effect of Vitamin D on Bone Accretion and Turn-Over in Young GirlsWho this might be right forVitamin D Deficiency University of Copenhagen 225
Not applicableActive Not RecruitingNCT06697626What this trial is testingValidation of a Novel Functional Food Designed to Meet the Nutritional Needs of People Living With Parkinson's DiseaseWho this might be right forConstipationParkinson Disease University of Ulster 56
Testing effectiveness (Phase 2)Study completedNCT00858247What this trial is testingEffect of Vitamin D3 Supplementation on Insulin Resistance and Cardiovascular Risk Factors in Obese AdolescentsWho this might be right forObesity Mayo Clinic 51
Not applicableStudy completedNCT01420406What this trial is testingVitamin A Bioavailability in Lactating Women With Marginal Vitamin A StatusWho this might be right forVitamin A Deficiency USDA, Western Human Nutrition Research Center 140
Not applicableStudy completedNCT04280601What this trial is testingPRagmatic Analysis of Vitamin D in ANCA-Associated VasculitisWho this might be right forANCA-associated VasculitisGranulomatosis With PolyangiitisMicroscopic Polyangiitis+1 more Christian Pagnoux 102
Not applicableWithdrawnNCT01724073What this trial is testingRegular Consumption of Leafy Vegetable Sauces and Micro-nutrient Status of Young Children in Burkina FasoWho this might be right forAnemia Institut de Recherche pour le Developpement
Large-scale testing (Phase 3)Study completedNCT01198574What this trial is testingSub-clinical Inflammation and Iron SupplementationWho this might be right forAnemia Indonesia University 402
Not applicableUnknownNCT02813707What this trial is testingProspective Study to Determine Long Term Impact of Bariatric SurgeryWho this might be right forQuality of Life United Arab Emirates University 150
Not applicableStudy completedNCT01751009What this trial is testingEffects of Fortified Complementary Foods on Vitamin A Status and Body Pool Size in Ghanaian Infants.Who this might be right forMalnutrition Kintampo Health Research Centre, Ghana 93
Not applicableLooking for participantsNCT07385144What this trial is testingA Dietary Supplement on Serum Biomarkers in ChildrenWho this might be right forNutritional StatusSerum Biomarkers SF Research Institute, Inc. 30