system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why does asparagus affect the scent of urine but not stool?
gpt
The chemical that makes asparagus stinky is water soluble. Anything that is water soluble gets absorbed into the blood stream and goes for a trip around the body. Pee is how our body rids itself of water soluble stuff that is not useful.

The way it goes is asparagus goes in, stinky chemical goes into the blood then stinky comes out with the pee.