Intestinal AbsorptionAbsorptionCalcium CarbonateCaco-2 CellsJejunumBiological AvailabilityStrontium IsotopesIntestine, SmallIntestinesBiological TransportLipid MetabolismIleumIntestinal MucosaMalabsorption SyndromesEnergy MetabolismDuodenumCalcium IsotopesAdministration, OralLymphCephalexinAdjuvants, PharmaceuticFecesSitosterolsLiverXyloseBileSymportersRats, WistarGlucosePerfusionAzetidinesBile Acids and SaltsP-GlycoproteinSerous MembraneChromatography, High Pressure LiquidTerfenadineDietCholesterolRats, Sprague-DawleySelenious AcidKineticsPhosphorusHartnup DiseaseEnterocytesTrioleinHydrogen-Ion ConcentrationCalcium, DietaryEnterohepatic CirculationDipeptidesIronLymphatic Systemgamma-Glutamyl HydrolaseBiological Transport, ActiveMicrovilliCalciumFatty AcidsZincFlavanonesSkin AbsorptionShort Bowel SyndromePhytosterolsTime FactorsPhosphatesPermeabilitySodiumCholecalciferolWaterSelenic AcidDose-Response Relationship, DrugChylomicronsGlucuronidesEmulsionsProdrugsColonDihydroxycholecalciferolsDrug InteractionsArea Under CurveCarbon RadioisotopesRats, Inbred StrainsHydroxycholecalciferolsTriglyceridesDietary FatsOxalic AcidMetabolismArbutinPteroylpolyglutamic AcidsInjections, IntravenousFolic AcidTritiumCarbon IsotopesSpectrophotometry, AtomicParenteral Nutrition, HomeTissue DistributionBody WeightCholesterol, DietaryIntestinal SecretionsFatsModels, BiologicalPharmaceutical PreparationsPharmacokinetics