Nicotinic AcidsNiacinVitamin B 12 DeficiencyVitamin B 6Vitamin AVitaminsVitamin DVitamin EVitamin B 12Vitamin B ComplexNicotinamide MononucleotideVitamin A DeficiencyFlushingPyridoxineNADPNiacinamideVitamin D DeficiencyNicotinamidaseTranscobalaminsVitamin B DeficiencyFolic AcidCyclic ADP-RiboseNADCobalt IsotopesVitamin K 1Vitamin E DeficiencyHypolipidemic AgentsThiaminePellagraDietary SupplementsVitamin K DeficiencyAscorbic AcidVitamin B 6 DeficiencyPyridoxal PhosphateXanthurenatesCholecalciferolAnemia, PerniciousFolic Acid DeficiencyPentosyltransferasesAmide Synthases3-Hydroxyanthranilate 3,4-DioxygenaseMethylmalonic AcidNicotinamide-Nucleotide AdenylyltransferaseRiboflavinIntrinsic FactorPyridoxic AcidAnemia, MegaloblasticSea UrchinsHydroxocobalaminNAD+ NucleosidaseReceptors, CalcitriolVitamin D-Binding ProteinReceptors, NicotinicAnemia, MacrocyticPyridoxalAvitaminosisFatty Acids, NonesterifiedCalcium SignalingCalciumLipolysisAntigens, CD38HyperhomocysteinemiaPyridoxal KinaseMalabsorption SyndromesDietVitamin K 2Receptors, G-Protein-CoupledNicotinamide PhosphoribosyltransferaseADP-ribosyl CyclaseSchilling TestCarbolinesCobamidesAdenosine Diphosphate RiboseCalcifediolNutritional StatusLiverOrganic Chemistry PhenomenaCalcitriolGlutaratesStrongylocentrotus purpuratusHyperlipidemiasBiological AssayGilbert DiseaseNutritional RequirementsDose-Response Relationship, DrugCobalt RadioisotopesLactobacillusAntioxidantsErgocalciferolsEuglenaPyridoxaminePyrazinesMacrocyclic CompoundsTime FactorsVitamin K 3AcrylamidesTryptophanInositol 1,4,5-TrisphosphateSecond Messenger SystemsBhutan