If you smell a funky odor in the bathroom a few hours after eating asparagus, chalk it up to good genetics. While some people are born with coveted high-metabolism or smart genes, you are blessed with... the stinky asparagus gene. Don't worry, you're in good company: A study published in the British Journal of Clinical Pharmacology found that 46 percent of British subjects and 100 percent of French subjects experience post-asparagus smelly pee. Why? In an interview with TODAY, Mark Leyner and Dr. Billy Goldberg, authors of Why Do Men Have Nipples? explained the phenomenon: "Asparagus contains a sulfur compound called mercaptan. It is also found in onions, garlic, rotten eggs, and in the secretions of skunks. The signature smell occurs when this substance is broken down in your digestive system."