CerealsFolic AcidBreakfastFood, FortifiedFood AnalysisDietary FiberDefecationFolic Acid DeficiencyFood LabelingHomocysteineDietFoodNutritional RequirementsNeural Tube DefectsEnergy IntakeBreadDietary SupplementsTetrahydrofolatesVitamin B 12Vitamin B ComplexFolic Acid AntagonistsPreconception CareFecesQuestionnairesFood ServicesFolate Receptors, GPI-AnchoredSecale cerealeHyperhomocysteinemiaAdolescent Nutritional Physiological PhenomenaSatiationFlourPostprandial PeriodVitamin B 6Food HabitsAnemia, MacrocyticCross-Over StudiesTriticumHematinicsFeeding BehaviorVitaminsSatiety ResponsePteroylpolyglutamic AcidsBiological AvailabilityVitamin B 12 DeficiencyFolic Acid TransportersEatingHordeumNutrition PolicyAppetitePregnancyDietary CarbohydratesMealsHungerMicronutrientsGlycemic IndexPrenatal CareNutritive ValueDouble-Blind MethodChild Nutritional Physiological PhenomenaAvena sativaNutritional StatusDiet RecordsFolate Receptor 1VegetablesBlood GlucosePrenatal Nutritional Physiological PhenomenaMethylenetetrahydrofolate Reductase (NADPH2)Iron, DietaryFormyltetrahydrofolatesSpinal DysraphismFruitDiet SurveysAminopterinHomocystineNutrition SurveysDietary ProteinsSchoolsReduced Folate Carrier ProteinPterinsOryza sativaArea Under CurveFIGLU TestPyridoxineNutrition AssessmentFastingIronZea maysDietary FatsMaternal Nutritional Physiological PhenomenaMethotrexateTime FactorsAnencephalyRiboflavinMethylmalonic AcidAdministration, OralCross-Sectional Studies4-Aminobenzoic AcidSnacksEggsFood Preferences