Asparagus Pee? Why Only Some People Smell It

Some people can smell the characteristic odor that asparagus gives to their urine, while others cannot. Now, a study reveals more than 800 new reasons why this strange phenomenon happens. Lorelei Mucci, an associate professor of epidemiology at Harvard T.H. Chan School of Public Health,and her colleaguescame up with the idea for the study at a 2010 scientific conference where their dinner included asparagus.