Ability to smell 'asparagus pee' driven by genetic variationsGarden Asparagus might cause a noticeable smell within your pee. It is commonly known that consuming this green vegetable can lead to a pungent fragrance when you visit the restroom. If you notice an unappealing odor following a delicious dish containing asparagus, there's no need to worry. It is merely a natural response that occurs physiologically. Rest assured that the smell is not dangerous and will go away gradually.