Asparagus Pee

Just this weekend, we had some conversations about asparagus pee. This is an interesting turn...

Gourmet Food Editors' Blog at Epicurious.com:

It turns out, everyone who eats asparagus has the metabolic byproducts in their urine, (with some debate over exactly which; S-methyl thioacrylate, methanethiol, or sulfur compounds.) But not everyone has the genetic disposition to smell it.
Fascinating.