QuercetinDietary SupplementsFlavonolsFlavonoidsVitaminsAntioxidantsOnionsFood, FortifiedPlant ExtractsMineralsDietAnimal FeedPlant PreparationsBiological AvailabilityGlycosidesMicronutrientsFolic AcidPhytotherapyVitamin EPhenolsAscorbic AcidCatechinPolyphenolsFlavanonesDietary ProteinsChromatography, High Pressure LiquidDose-Response Relationship, DrugRandom AllocationNutritional RequirementsGlucosidesMolassesTrace Elements