LuteinBrassicaXanthophyllsChlorzoxazoneHerb-Drug InteractionsCarotenoidsbeta CaroteneFood-Drug InteractionsDextromethorphanVegetablesSleep StagesPlant ExtractsMacula LuteaRetinal PigmentsPhotometryDietary SupplementsMacular DegenerationDietVitamin AChromatography, High Pressure LiquidEggsEgg Yolkalpha-Tocopherol