Vitamin B 12 DeficiencyVitamin B 6Vitamin AVitaminsVitamin DVitamin EVitamin B 12Vitamin B ComplexVitamin A DeficiencyPyridoxineVitamin D DeficiencyZinc FingersTranscobalaminsVitamin B DeficiencyFolic AcidCobalt IsotopesVitamin K 1Vitamin E DeficiencyZinc SulfateDietary SupplementsZinc CompoundsAscorbic AcidVitamin K DeficiencyVitamin B 6 DeficiencyZinc OxidePyridoxal PhosphateCholecalciferolAnemia, PerniciousFolic Acid DeficiencyMethylmalonic AcidThiamineRiboflavinIntrinsic FactorZinc IsotopesPyridoxic AcidAnemia, MegaloblasticDietHydroxocobalaminReceptors, CalcitriolVitamin D-Binding ProteinAvitaminosisAnemia, MacrocyticZinc AcetatePyridoxalNutritional StatusHyperhomocysteinemiaMalabsorption SyndromesPyridoxal KinaseVitamin K 2Schilling TestNutritional RequirementsCobamidesCalcifediolCalcitriolAntioxidantsCobalt RadioisotopesFood, FortifiedIntestinal AbsorptionErgocalciferolsEuglenaPyridoxamineVitamin K 3MicronutrientsBhutanPantothenic Acidbeta CaroteneCorrinoidsVitamin K Deficiency BleedingTrace ElementsMethylenetetrahydrofolate Reductase (NADPH2)RicketsDiet, VegetarianSunlightLiver5-Methyltetrahydrofolate-Homocysteine S-Methyltransferasealpha-TocopherolMethionineXanthurenatesPyridoxaminephosphate OxidasePostgastrectomy SyndromesMolecular Sequence DataMethylmalonyl-CoA MutaseCystathionineDouble-Blind MethodPregnancyPropionibacteriumMineralsSodium-Coupled Vitamin C Transporters25-Hydroxyvitamin D3 1-alpha-HydroxylaseCopperVitamin K Epoxide ReductasesBiological AvailabilityMetallothioneinHydroxycholecalciferolsNitrogenous Group TransferasesHomocysteineRisk FactorsTocopherolsMilk, HumanIron