In a message dated 1/31/03 10:30:00 PM Eastern Standard Time,
[log in to unmask] writes:

 > Now this % "energy" from fat range (47.5% - 67%) simply doesn't jive with
 > the range Cordain quoted in the paper as 28 - 58%.  I guess this is a  lon=
g
 > winded way of saying: I don't know.
 >

I wrote Cordain and asked him earlier today.  He was kind enough to respond
back right away.  Here is the explanation:

The 28-58 % range represents the macronutrient range for 58 % of=A0hunter
gatherer societies from all latitudes (from our AJCN 2000 paper - Table 4 p.
689), whereas the 28-47 % range represents the range when we corrected for
latitude.=A0 More northernly hunter-gatherers have no choice but=A0to eat more
animal food because of the seasonal availability
of plant foods.=A0=A0=A0 Because
there was a disproportionate number of hunter gatherer societies living above
40 degrees N latitude than below=A0in the Ethnographic Atlas, it skewed the
data.=A0 Hence the 28-47 % range represents=A0the unskewed data.