Michael Audette wrote:

>  Someone once posted a site or article about how agro type foods are
>addictive and were a probable cause of such a change in history. Ray or
>someone on this list could point you to it.

I presume you are referring to "The origins of agriculture – a biological
perspective and a new hypothesis" in which Greg Wadley & Angus Martin argue
that the shift to cultivation and animal domestication was due to the
"comfort" derived from the opioid peptides from gluten:

http://www.vegan-straight-edge.org.uk/GW_paper.htm

Also see John Coleman's "Opioids In Common Food Products-Addictive Peptides
In Meat, Dairy and Grains":

http://www.vegan-straight-edge.org.uk/opioids.htm

Don.