> Vitamin D, which helps bones absorb calcium, is activated by sunlight.

This is a misstatement.  Vitamin D does help bones absorb calcium.  What
sunlight does is help the body MAKE vitamin D from precursor molecules.  If
you have sufficient Vitamin D in your diet, you can live without sunlight at
all (see Inuit populations in the Arctic, for example).  Vitamin D in the
diet is not further affected by sunlight.

Kathy Dettwyler

             ***********************************************
The LACTNET mailing list is powered by L-Soft's renowned
LISTSERV(R) list management software together with L-Soft's LSMTP(TM)
mailer for lightning fast mail delivery. For more information, go to:
http://www.lsoft.com/LISTSERV-powered.html