====== Asparagus odour in urine ====== There are two as yet unexplained enigmas regarding the unusual odour of the urine of those who have recently eaten asparagus. 1) The odour-causing molecules have not been unequivocally identified. 2) Some individuals cannot smell the odour at all. Reference: [[http://chemse.oxfordjournals.org/content/early/2010/09/27/chemse.bjq081.full|Excretion and Perception of a Characteristic Odor in Urine after Asparagus Ingestion: a Psychophysical and Genetic Study]] in //Chem. Senses,// Volume 36, Issue 1,