BetaineVitamin AVitaminsVitamin DVitamin EVitamin B 12Vitamin A DeficiencyVitamin D DeficiencyLipotropic AgentsSarcosineVitamin B 6Vitamin K 1Vitamin E DeficiencyCholineVitamin B 12 DeficiencyBetaine-Homocysteine S-MethyltransferaseVitamin K DeficiencyVitamin B 6 DeficiencyDietary SupplementsCholecalciferolAscorbic AcidOsmotic PressureHomocysteineWater-Electrolyte BalanceReceptors, CalcitriolVitamin D-Binding ProteinPyridoxineFolic AcidVitamin K 2DietProlineCalcifediolOsmolar ConcentrationCalcitriolSodium ChlorideMethionineVitamin B DeficiencyErgocalciferolsAntioxidantsHomocystinuriaVitamin K 3Vitamin K Deficiency BleedingNutritional StatusAvitaminosisRicketsSunlightalpha-TocopherolAmino Acids, Diaminobeta CaroteneNutritional Requirements