[TazeTSchnitzel]

The list of warned substances includes hormones naturally produced by the body.

WARNING: This human being contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

[taneq]

Have you ever seen human-cancer or birth defects come from anything but a human? Hmm? HMMM?

[mtgx]

Feces are produced by the human body, too. Should you be eating them?

Just because something is also produced by the human body or is "natural" doesn't mean it is good for humans to ingest, especially in significant quantities over long periods of time.

[sli]

Consider that you had to go to the other extreme end of the scale to make your point.