On: Bioethicist proposes adding lithium to US drinking...

[nphase]

Also, I highly doubt anyone has done a study on what tiny amounts of lithium ingested regularly would do to your kidneys. There is a reason your doctor wants you to get semi-regular kidney function tests if you're on lithium.

[astrange → nphase]

I would expect someone has done a study.

http://scholar.google.com/scholar?q=renal+lithium+therapy

[nphase → astrange]

These seem to be for normal doses, not tiny ones as the article suggests