The Smell of Asparagus Urine Part 1 ChemistryViewsGarden Asparagus may cause a noticeable scent inside your urine. It is commonly known that ingesting this green vegetable can result in a powerful aroma while visiting the bathroom. If you notice an unappealing smell once you've indulged comprising asparagus, do not be alarmed. It is merely a natural response that occurs internally. Feel confident that the smell poses no harm and will diminish eventually.