NiacinVitamin B 12 DeficiencyVitamin B 6Vitamin AVitaminsVitamin DVitamin EVitamin A DeficiencyVitamin B ComplexVitamin B 12Vitamin D DeficiencyPyridoxineFlushingVitamin B DeficiencyPellagraTranscobalaminsFolic AcidVitamin E DeficiencyCobalt IsotopesVitamin K 1Vitamin B 6 DeficiencyFolic Acid DeficiencyDietary SupplementsVitamin K DeficiencyThiamineAscorbic AcidRiboflavinHypolipidemic AgentsDietAnemia, PerniciousMethylmalonic AcidCholecalciferolPyridoxal PhosphateNicotinic AcidsIntrinsic FactorDeficiency DiseasesAnemia, MegaloblasticThiamine DeficiencyHydroxocobalaminNutritional StatusAnemia, MacrocyticPyridoxic AcidNutritional RequirementsAvitaminosisReceptors, CalcitriolXanthurenatesVitamin D-Binding ProteinNiacinamidePyridoxalMalabsorption SyndromesHyperhomocysteinemiaalpha 1-Antitrypsin DeficiencyPyridoxal KinaseVitamin K 2Food, FortifiedSchilling TestCobamidesLiverCalcitriolMicronutrientsCalcifediolPantothenic AcidDelayed-Action PreparationsIgA DeficiencyAnemia, Iron-DeficiencyAntioxidantsVitamin K Deficiency BleedingMice, KnockoutCobalt RadioisotopesErgocalciferolsTryptophanRiboflavin DeficiencyMethionineEuglenaRicketsGlucosephosphate Dehydrogenase DeficiencyPyridoxamineIronVitamin K 3BhutanBody WeightSunlightPregnancyMagnesium DeficiencyDose-Response Relationship, DrugMutationbeta CaroteneMethylenetetrahydrofolate Reductase (NADPH2)Double-Blind MethodAscorbic Acid DeficiencyMetabolism, Inborn ErrorsCorrinoidsIntestinal AbsorptionNutrition PolicyMinerals5-Methyltetrahydrofolate-Homocysteine S-MethyltransferaseSeleniumDiet, Vegetarianalpha-TocopherolNutritive Value