The Smell of Asparagus Urine ChemistryViewsGarden Asparagus may cause a distinctive smell within your pee-pee. It is generally acknowledged that eating this green vegetable can lead to a strong fragrance when you visit the bathroom. If you observe an unappealing smell following a delicious dish containing asparagus, there's no need to worry. It is just a natural response that occurs physiologically. Be reassured that the odor is not dangerous and will go away gradually.