Peeing after eating asparagus can be daunting: The liquid takes on a strange, pungent, rotten odour which can be off-putting, to say the least. But why is that?
The really fascinating fact is that some people do not produce smelly pee after consuming asparagus (though they're rare among the population), and some people still might produce it yet not be able to smell it as offensive! Scientists have not gone into the screws & bolts of how and why this is, but the most widespread explanation is genetic variations: Some people have genes that dictate their system to process asparagusic acid somewhat differently, while variation in the smelling perception spectrum is hypothesized to be a combination of genetic and societal factors coming into play.
pic of asparagus via pellanews.gr