>I found a reference in a book on longevity by Hitchcox
>where the average coloric intake of the Hunzas, the
>Russian Georgians, and the Vilcabamba indians was given.
>All were considerably lower than the American average,
>but the lowest was the Vilcabambas at 1200 cal/day.
>This is a average, and not much higher than Loren's.

And what is known about the accuracy of such estimates?
Self-reporting of food intake is often inaccurate, due to
uncertain portion sizes, memory lapses, and the limits on
food tables (especially tables that don't include the
foods eaten in the region of interest).

Tom Billings