In a message dated 3/11/00 5:56:46 AM Eastern Standard Time,
[log in to unmask] writes:

<<  According to Reinhold Vieth, a researcher, Univ. of
 Toronto, adults may need at minimum five times the RDA or 1,000 I.U. of
 vitamin D per day to protect against cancers, bone fractures, and to derive
 other broad range health benefits. ( May 1999, Am  J Clin Nutr) >>

And what about sunshine: Is there enough for the chemical transformations to
proceed with these raw materials?