The Smell of Asparagus Urine Part 3 ChemistryViewsSpear Grass can cause a noticeable scent inside your urine. It is generally acknowledged that ingesting this verdant plant can result in a pungent aroma when you visit the restroom. If you see an offensive odor after enjoying a meal including asparagus, don't panic. It is simply a normal response that occurs within the body. Be reassured that the odor poses no harm and will fade over time.