Vitamin AVitaminsVitamin DVitamin EVitamin B 12Vitamin A DeficiencyVitamin D DeficiencyVitamin K 1Vitamin B 6Vitamin E DeficiencyVitamin B 12 DeficiencyVitamin K DeficiencyCholecalciferolVitamin B 6 DeficiencyAscorbic AcidReceptors, CalcitriolDietary SupplementsVitamin D-Binding ProteinCalcitriolPyridoxineVitamin K 2CalcifediolVitamin B DeficiencyErgocalciferolsAntioxidantsVitamin K 325-Hydroxyvitamin D3 1-alpha-HydroxylaseFolic AcidDietRicketsVitamin K Deficiency BleedingAvitaminosisSunlightNutritional Statusalpha-TocopherolHydroxycholecalciferolsbeta CaroteneMolecular Sequence DataEnzyme ActivationSodium-Coupled Vitamin C TransportersPyridoxal PhosphateDihydroxycholecalciferolsAmino Acid SequenceVitamin K Epoxide ReductasesHomocysteineKineticsTranscobalaminsTocopherolsNutritional RequirementsLiverFood, Fortified25-Hydroxyvitamin D 2Parathyroid HormoneMethylmalonic AcidVitamin D Response ElementEnzyme PrecursorsCalciumRecombinant ProteinsDose-Response Relationship, DrugCarbon-Carbon LigasesCarotenoidsSignal TransductionCalcium, DietaryRiboflavinCells, CulturedXerophthalmiaHypervitaminosis ACell LineTime FactorsBase SequenceChromatography, High Pressure Liquid24,25-Dihydroxyvitamin D 3Pyridoxic AcidRNA, MessengerProtein BindingThiamineBone and BonesAdministration, OralPregnancyPhosphorylationFolic Acid DeficiencyEscherichia coliDouble-Blind MethodMineralsCobalt IsotopesRetinol-Binding ProteinsMicronutrientsBinding SitesSeleniumTretinoinIntestinal AbsorptionOxidative StressNutrition PolicyCholestanetriol 26-MonooxygenaseBlotting, WesternMolecular WeightMutationOxidation-ReductionElectrophoresis, Polyacrylamide GelMetalloendopeptidases