Folic Acid DeficiencyAnemia, MacrocyticFolic AcidFIGLU TestAscorbic Acid DeficiencyVitamin B 12 DeficiencyFatty Acids, EssentialVitamin B 12ScurvyDeficiency DiseasesNeural Tube DefectsDietary SupplementsLinolenic AcidsTetrahydrofolatesSafflower OilHomocysteineFood, Fortifiedalpha-Linolenic AcidVitamin B ComplexParenteral NutritionAscorbic AcidOilsFolic Acid AntagonistsCocosParenteral Nutrition, TotalLinoleic AcidsRats, Mutant StrainsDietMalabsorption SyndromesPreconception CareDocosahexaenoic AcidsFatty AcidsPhospholipidsFatty Acids, UnsaturatedFatty Acids, Omega-3Folate Receptors, GPI-Anchored