BetaineCholineCholine DeficiencyLipotropic AgentsPhosphatidylethanolamine N-MethyltransferasePerchesDietNutritional RequirementsNootropic AgentsPhosphatidylcholinesCholine KinaseWeight GainMethionineLiverDietary FatsFolic AcidCholine O-AcetyltransferaseSarcosineDietary SupplementsDietary ProteinsDietary FiberBetaine-Homocysteine S-MethyltransferasePregnancyDietary CarbohydratesHemicholinium 3Cytidine Diphosphate CholineCholine DehydrogenaseOsmotic PressureWater-Electrolyte BalanceCalcium, DietaryDietary Fats, UnsaturatedCholesterol, DietaryEnergy IntakeHomocysteineGlycerylphosphorylcholinePhosphorylcholineOsmolar ConcentrationAnimal FeedSodium ChlorideProlineFood HabitsSodium, DietaryBody WeightEthanolamineIron, DietaryDiet RecordsPotassium, DietaryVegetablesDeanolDietary SucroseDiet SurveysEatingHomocystinuria