Search tips
Search criteria 


Logo of chemseLink to Publisher's site
Published online 2010 September 27. doi: 10.1093/chemse/bjq081

Table 2

Summary of previous studies of odor production after asparagus consumption

Raters of odoraN (F/M)bPopulation% Cannot producecReference
Not given103 (50F/53M)French0Richer et al. (1989)
Study authors19 (12F/7M)American21Sugarman and Neelon (1985)
3 Judges800 (238F/562M)British57Mitchell et al. (1987)
Not given115 (not given)British60Allison and McWhirter (1956)
Gas chromatography3 (3F)American67Gearhart et al. (1977)
a“Raters of odor” refers to the people or instrumentation classifying the presence or absence of asparagus odor from urine.
bN, sample size; M, male; F, female.
c“% Cannot produce” indicates cannot produce the characteristic compounds associated with the odor from asparagus urine. Psychophysical methods used to detect the asparagus odor are either not given (Allison and McWhirter 1956; Richer et al. 1989) or briefly described. Typically, subjects were allowed to sniff the urine and asked to decide if it had an “unusual” (Sugarman and Neelon 1985) or “characteristic” odor (Mitchell et al. 1987).