>3. vitamin D. none.  the only viable food source is fish livers. depends on
>the purpose of this exercise i guess, but you need to be outside for a fair
>time in the tropics or subtropics to get what you need. not an issue for
>desert aborigines i agree.

Hi Andrew;

I'm not so sure if it is for that long of a time that is required;

http://www.nlm.nih.gov/medlineplus/ency/article/002405.htm#recommendations

"Vitamin D is also known as the "sunshine vitamin" because the body
manufactures the vitamin after being exposed to sunshine. Ten to 15 minutes
of sunshine 3 times weekly is adequate to produce the body's requirement of
vitamin D."

http://www.nlm.nih.gov/medlineplus/druginfo/vitamindandrelatedcompoundssys20
2597.html

"Vitamin D is found naturally only in fish and fish-liver oils. However, it
is also found in milk (vitamin D-fortified). Cooking does not affect the
vitamin D in foods. Vitamin D is sometimes called the ``sunshine vitamin''
since it is made in your skin when you are exposed to sunlight. If you eat a
balanced diet and get outside in the sunshine at least 1.5 to 2 hours a
week, you should be getting all the vitamin D you need."

Marilyn
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