Troy,

Cows milk would be inaccessible because of the problems of milking a wild
buffalo. A Brazil nut would be inaccessible because it is extremely
unlikely that the vast majority of  our ancestors would ever have come
across one. Does that not make both these foods "foreign"?  There must be
many foods that are regionally confined that meet the "no technology"
criteria, but we would never have encountered them. I know this complicates
things immensely, but maybe this is a clue that we are looking at the wrong
criteria, or are not including enough criteria? Or maybe I am just being
too pedantic. I cannot help feeling that, on the evidence, you run a
greater risk of developing diabetes complications by eating too much fruit,
for example. The "no technology" rule does not cover this risk.  I think
that tight blood glucose control may be a possible addition to the rules.
IMHO :-)

Gary

>Try milking a wild
> buffalo without a tranquilizer gun.
>
> A Brazil nut or its wild equivalent meets the sole criterion for human
> food: It's edible when you're naked with a sharp stick. Thus, eating it
> won't cause your body to attack itself.
>
> Troy Gilchrist <[log in to unmask]>
> Co-author, NEANDERTHIN: A CAVEMAN'S GUIDE TO NUTRITION