MethionineVitamin AVitaminsVitamin DVitamin EVitamin B 12Vitamin A DeficiencyVitamin D DeficiencyMethionine Sulfoxide ReductasesMethionine AdenosyltransferaseVitamin B 6Vitamin B 12 DeficiencyVitamin K 1Vitamin E DeficiencyVitamin B 6 Deficiency5-Methyltetrahydrofolate-Homocysteine S-MethyltransferaseVitamin K DeficiencyAscorbic AcidCholecalciferolS-AdenosylmethionineHomocysteineDietary SupplementsMethionyl AminopeptidasesReceptors, CalcitriolVitamin D-Binding ProteinPyridoxineFolic AcidCystathionineDietVitamin K 2Vitamin B DeficiencyCalcifediolAmino Acids, SulfurAmino AcidsCalcitriolNutritional RequirementsAntioxidantsMethionine SulfoximineErgocalciferolsVitamin K 3LiverS-AdenosylhomocysteineEnkephalin, MethionineCystineAminopeptidasesMolecular Sequence DataVitamin K Deficiency BleedingAmino Acid SequenceOxidation-ReductionAvitaminosisNutritional StatusEthionineCysteineFood, FortifiedRicketsSunlightalpha-Tocopherolbeta CaroteneHyperhomocysteinemiaMethionine-tRNA LigaseTranscobalaminsMethylmalonic AcidCystathionine beta-SynthaseFolic Acid DeficiencyKineticsBetaine-Homocysteine S-MethyltransferaseEscherichia coliSulfurSodium-Coupled Vitamin C TransportersOxidoreductases25-Hydroxyvitamin D3 1-alpha-HydroxylaseThionucleosidesVitamin K Epoxide ReductasesHydroxycholecalciferolsMethylationSulfur RadioisotopesRiboflavinPyridoxal PhosphateTetrahydrofolatesVitamin USelenomethionineBase SequenceTocopherolsChromatography, High Pressure LiquidParathyroid HormoneGlycine N-Methyltransferase25-Hydroxyvitamin D 2NorleucineMutationOxidative StressSeleniumDose-Response Relationship, DrugHomocystinuriaMethyltransferasesVitamin D Response ElementHomocystineBetaineCarbon-Carbon LigasesDihydroxycholecalciferolsCarotenoids