Nutritional StatusMalabsorption SyndromesProtein HydrolysatesFood, FormulatedDietLactose IntoleranceFoodSprue, TropicalIntestinal AbsorptionLactose Tolerance TestSchilling TestFood SupplyIntrinsic FactorCeliac DiseaseJejunumBreath TestsVitamin B 12Food AnalysisXyloseFood LabelingFood PreferencesDietary FatsProton-Coupled Folate TransporterFood HabitsHydrogenEnergy IntakeDiet, ReducingVitamin B 12 DeficiencyFructose IntoleranceDietary CarbohydratesFatsEatingFecesIntestine, SmallLactuloseCobalt IsotopesDietary ProteinsNitrogenExocrine Pancreatic InsufficiencyLactoseFood, FortifiedShort Bowel SyndromeAnimal FeedNutritional Physiological PhenomenaFood HandlingDiarrheaNutritive ValueMilkBile Acids and SaltsNutritional RequirementsFood IndustryDiet TherapyMicronutrientsIntestinal DiseasesFood DeprivationFood MicrobiologyAnimal Nutritional Physiological PhenomenaHealth FoodDigestionPancrelipaseAvitaminosisFolic Acid DeficiencyGlutensFood HypersensitivityFolic AcidFood ContaminationDeficiency DiseasesDiet SurveysBody WeightNutrition DisordersIleumDiet, High-FatDiet RecordsPancreatic ExtractsFructoseFeeding BehaviorDietary SupplementsFast FoodsFood SafetyDiet, Fat-RestrictedAnemia, MegaloblasticIntestinesDuodenumDiet, Gluten-FreeDiet, VegetarianFood Service, HospitalAnemia, MacrocyticEnergy MetabolismTrioleinDiet, MediterraneanBlind Loop SyndromeCarbohydrate Metabolism, Inborn ErrorsFood ServicesFood, Genetically ModifiedVitamin E DeficiencySelenium RadioisotopesAbsorptionDietary FiberIntestinal MucosaPostgastrectomy Syndromes