Interesting article -- thanks Don.
 
 I didn't know anything about the hunter gather group referenced  in the 
article so I  looked them up and it appears that in addition to  meat,  their 
diet contains fair amounts of berries, tubers  and honey.  They vary the 
their diet according to season and availability.  This  to me says that they 
are not eating all the meat they want all year round the  way "urban paleos" 
can.  I think it's quite possible to consume too much  protein to the point 
where ones blood sugar rises higher than one would  like.  Does this happen 
as easily or quickly as when one eats a handful of  Jelly Beans -- no  -- but 
it can still  happen.