On Mar 3, 2014, at 12:55 PM, Dedy Rundle <[log in to unmask]> wrote:

> [Potatoes and yams] have been discovered/cultivated
> by the indigenous people of Central and South
> America for MILLENNIA!


Let’s just assume those indigenous groups of Central and South America who did eat them (not all groups did) had time to adapt to their consumption, Dedy.  What percentage of the world’s population are we talking about here?   How many people are 100% descended from those groups?

Jim