Early research (Phase 1)Study completedNCT00636038What this trial is testingBioavailability of Yellow Maize Carotenoids in HumansWho this might be right forVitamin A Status Tufts University 8
Not applicableStudy completedNCT00128752What this trial is testingThe CARO Study - Bioefficacy of Beta-Carotene in Oil and in a Mixed Diet in Healthy SubjectsWho this might be right forHealthy Radboud University Medical Center 24
Not applicableStudy completedNCT02276014What this trial is testingEffect of SNPs in the BCMO1 EnzymeWho this might be right forBeta-carotene BioavailabilityVitamin A Deficiency Newcastle-upon-Tyne Hospitals NHS Trust 85
Not applicableStudy completedNCT01748916What this trial is testingComparison of Carotenoid Bioavailability From Fresh Papaya, Tomato and CarrotWho this might be right forFocus of Study: Carotenoid Absorption Ohio State University 16
Not applicableStudy completedNCT02348164What this trial is testingHuman Lycopene and Beta-cryptoxanthin Absorption From Citrus FruitWho this might be right forBioavailability of Carotenoids USDA, Western Human Nutrition Research Center 23
Not applicableStudy completedNCT05046457What this trial is testingBeta-cryptoxanthin Supplement: Absorption and FunctionWho this might be right forBeta-cryptoxanthin Supplementation Institute for Human Development and Potential (IHDP), Singapore 90
Not applicableStudy completedNCT05319548What this trial is testingPlant Pigments for Human Health: Impact of Lycopene and Anthocyanins on Bioefficacy of Provitamin A Carotenoids From CarrotsWho this might be right forHealthy University of Wisconsin, Madison 12
Not applicableStudy completedNCT00453648What this trial is testingImpact of Consumption of Orange-fleshed Sweet Potatoes on the Vitamin A Status of Bangladeshi Women of Reproductive AgeWho this might be right forVitamin A Deficiency University of California, Davis 130
Not applicableStudy completedNCT02373943What this trial is testingThe MULTINUTRIENT Maize Project: Results of Human Feeding TrialWho this might be right forHealthy Institut de Recerca Biomèdica de Lleida 20
Not applicableStudy completedNCT00128804What this trial is testingThe STOVITA Study - Bioefficacy of Beta-Carotene in Oil and in a Mixed Diet in Ileostomy PatientsWho this might be right forHealthyIleostomy Radboud University Medical Center 18
Not applicableUnknownNCT02380144What this trial is testingBioavailability of Carotenoids and Flavonoids From Fresh Oranges and Orange Juice.Who this might be right forHealthy University of Hohenheim 12
Not applicableUnknownNCT04153968What this trial is testingBioefficacy of Beta-cryptoxanthin From Biofortified MaizeWho this might be right forVitamin A Deficiency Newcastle University 50
Not applicableStudy completedNCT05840848What this trial is testingEffect of Iron and Zinc Supplementation on B-carotene Bioavailability in Healthy MalesWho this might be right forBioavailability University of Hohenheim 12
Not applicableStudy completedNCT02246985What this trial is testingBioavailability of Carotenoids Added Into Processed FoodsWho this might be right forCardiovascular Disease University of Aberdeen 20
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