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"Ron] Again, do you have an citations to articles that support this? If not,
where are Cordain's data coming from?"
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Ron, I am not a scientist, I often have to trust the authority of the
person who is giving me the information, in this case, I think the
data you seek it is contained in the bibliography of Cordain's book
“The Paleo Diet.”  That's been good enough for me, so far.

Ken