Dave W wrote:
> In article .net>,
> Blinky the Shark > wrote:
>
>> ChattyCathy wrote:
>>
>> > Blinky the Shark wrote:
>> >> ChattyCathy wrote:
>> >>
>> >>> http://www.recfoodcooking.com/
>> >>
>> >> I believe this is a genetically linked trait.
>> >>
>> >> BUT here's something to consider: is the difference in making stinky
>> >> pee or not making stinky pee -- or is the difference in the ability
>> >> to *perceive* the stinky pee that everyone makes after eating
>> >> asparagus?
>> >>
>> > Well, I can certainly *perceive* it. LOL! However, as there is such a
>> > thing as 'air freshener' available for use in the bathroom, I really
>> > don't care. Asparagus is great stuff!
>>
>> My question stands, however, for anyone with the simple intellectual
>> curiosity to whether or not the dichotomy is with the ability to produce
>> the odor or with the ability to perceive it.
>>
>> And I like asparagus, too. 
> *********
> http://www.drugs.com/npp/asparagus.html
>
> In one study, 43% of 800 volunteers had urine odor following asparagus
> ingestion. Production of the odor appears to be an autosomal dominant
> genetic trait that is evident throughout life. A study of 307 volunteers
> found that 10% had the ability to smell high dilutions of urine from
> asparagus-fed individuals, suggesting that the ability to smell
> asparagus-tainted urine is also a specific trait. A study of 19
> volunteers confirmed that only some people have the ability to produce or
> detect the odor. This may suggest a genetic composition to these traits.
> **********
Excellent. Thanks, Dave.
And more info at the link blake posted in reply, as well...
> We actually did some "informal observations" at a small dinner party a few
> years ago. The participants were on faculty at university that will remain
> unnamed. Asparagus was served at dinner and one of the guests (a
> psychology prof who's specialty, like mine, is "sensation and perception")
> discussed the urine odor thing. He claimed a genetic component. The rest
> of the evening nobody flushed after peeing without allowing the rest of us
> to "sample" the pee (with our noses).
>
> Science is fun.
Uh...
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