Calcium, DietaryDietary SupplementsCalcium CarbonateOsteoporosisBone Density Conservation AgentsVitamin DOsteoporosis, PostmenopausalBone DensityCalcium SignalingCalciumFood, FortifiedHypocalcemiaBone and BonesParathyroid HormoneFractures, BoneMilkLeadAbsorptionCalcium ChannelsDietRandomized Controlled Trials as TopicPostmenopauseDouble-Blind MethodRisk FactorsDrug Therapy, CombinationVitaminsCardiovascular DiseasesCalcium PhosphatesCalcium IsotopesCalcium ChlorideMineralsCalcium Channels, L-TypeCalcium OxalateCalcium GluconateCalcium RadioisotopesCalcium CompoundsTime FactorsAnimal FeedCalcium Channels, N-TypeEgtazic AcidInsurance BenefitsMicronutrientsPhosphorusCalcium Channel AgonistsPlant PreparationsNutritional RequirementsFolic AcidDose-Response Relationship, DrugDietary ProteinsTreatment OutcomeCattleRandom AllocationMagnesiumUnited StatesCalcium HydroxideCells, CulturedCalcimycinTrace ElementsNifedipineCalcium SulfatePregnancyChelating AgentsNutritional StatusKineticsAscorbic AcidVitamin EMembrane PotentialsIntestinal AbsorptionZincFura-2Calcium CitrateMolassesNutrition PolicyDigestionPlant ExtractsPhytotherapyPoaceaeVitamin ARumenThapsigarginS100 Calcium Binding Protein GAntioxidantsRyanodine Receptor Calcium Release ChannelBody WeightCalcium PyrophosphateCalcium Metabolism DisordersVerapamilEatingAnimal Nutritional Physiological PhenomenaPotassiumVitamin B ComplexRats, Sprague-DawleyQuestionnairesCalcium-Binding ProteinsProspective StudiesDietary FiberDihydropyridinesCholecalciferolCytosolBiological Availability