Intestinal AbsorptionAbsorptionIntestinal MucosaJejunumCaco-2 CellsIntestine, SmallGastric MucosaBiological AvailabilityStrontium IsotopesIntestinesMouth MucosaIleumDuodenumMalabsorption SyndromesBiological TransportCalcium IsotopesLymphAdministration, OralAdjuvants, PharmaceuticNasal MucosaSitosterolsXyloseSerous MembraneFecesAzetidinesBileP-GlycoproteinCephalexinRats, WistarTerfenadineBile Acids and SaltsPerfusionEnterocytesHartnup DiseaseSelenious AcidColonMicrovilliSymportersLymphatic SystemTrioleingamma-Glutamyl HydrolaseDipeptidesEnterohepatic CirculationDietRats, Sprague-DawleyPermeabilityShort Bowel SyndromeBiological Transport, ActiveSkin AbsorptionFlavanonesZincCholesterolPhytosterolsChromatography, High Pressure LiquidIronSelenic AcidWaterEmulsionsCholecalciferolLiverIntestinal SecretionsArbutinSodiumDihydroxycholecalciferolsChylomicronsProdrugsHydroxycholecalciferolsOxalic AcidPteroylpolyglutamic AcidsCalcium, DietaryDose-Response Relationship, DrugHydrogen-Ion ConcentrationParenteral Nutrition, HomeArea Under CurveGlucuronidesKineticsSpectrophotometry, AtomicPhosphorusInjections, IntravenousMucous MembraneDrug InteractionsRats, Inbred StrainsX-Ray Absorption SpectroscopyCalcium RadioisotopesTime FactorsCefiximeDietary FatsProton-Coupled Folate TransporterDiarylheptanoidsFolic AcidCholesterol, DietaryForsythiaTaurocholic AcidAnticholesteremic AgentsSodium-Glucose Transporter 1Postgastrectomy SyndromesFatsMagnesium OxidePharmacokineticsCecum