Vitamin AVitaminsVitamin DVitamin EVitamin B 12Vitamin A DeficiencyVitamin D DeficiencyVitamin K 1Vitamin B 6Vitamin E DeficiencyVitamin B 12 DeficiencyVitamin K DeficiencyVitamin B 6 DeficiencyCholecalciferolAscorbic AcidDietary SupplementsReceptors, CalcitriolVitamin D-Binding ProteinPyridoxineVitamin K 2CalcifediolCalcitriolVitamin B DeficiencyErgocalciferolsVitamin K 3AntioxidantsDietFolic AcidVitamin K Deficiency BleedingAvitaminosisSunlightRicketsNutritional Statusalpha-Tocopherolbeta CaroteneSodium-Coupled Vitamin C Transporters25-Hydroxyvitamin D3 1-alpha-HydroxylaseVitamin K Epoxide ReductasesHydroxycholecalciferolsHomocysteineTranscobalaminsTocopherolsNutritional RequirementsFood, Fortified25-Hydroxyvitamin D 2Parathyroid HormoneMethylmalonic AcidVitamin D Response ElementCarotenoidsCarbon-Carbon LigasesDihydroxycholecalciferolsCalcium, DietaryRiboflavinPyridoxal PhosphateXerophthalmiaHypervitaminosis A24,25-Dihydroxyvitamin D 3Pyridoxic AcidLiverThiamineDouble-Blind MethodMineralsFolic Acid DeficiencyRisk FactorsCalciumMicronutrientsRetinol-Binding ProteinsCobalt IsotopesSeleniumNutrition PolicyDose-Response Relationship, DrugCholestanetriol 26-MonooxygenasePregnancyBone and BonesPyridoxalIntestinal AbsorptionSeasonsTime FactorsAdministration, OralOxidative StressOsteomalaciaLipid PeroxidationBone Density Conservation Agentsgamma-TocopherolBone DensityTocotrienolsChromatography, High Pressure LiquidBiological MarkersOsteocalcinTretinoinPhosphorusCross-Sectional StudiesBody WeightPantothenic AcidProspective StudiesRetinol-Binding Proteins, PlasmaMilk, HumanCase-Control StudiesHyperhomocysteinemiaBiological Availability