Thread: Meat diet
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Old 08-06-2003, 12:20 PM
Oz
 
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Default Meat diet

Jim Webster writes
I'm trying to find out just how much meat people eat a day in those pastoral
societies where they don't grow much in the way of crops, because they are
nomadic or similar, and I just wondered if anyone had any nutritional
information


Funnily enough I nearly posted this yesterday, but decided nobody would
be interested.

Sci Am, special edition "Human Evolution" (display to 25/aug03) p70

Hunter Tot Energy Animal Plant
Gatherer kcal/day foods foods
!Kung 2100 33 67
Inuit 2350 96 4

Pastoralists
Turkana (Kenya) 1411 80 20
Evenki (Russia) 2820 41 59

Agriculturalists
Quechua (Peru) 2002 5 95

Industrial
US 2250 23 77

========

Contemporary hunter gatherers derive on average 40-60% of their diet
from animal foods.

Chimps derive only 5-7% from animal foods.

Neanderthals had the same diet as local foxes and wolves.
[So probably not terribly vegetarian]

========

Humans: energy intake is typical of a mammal of the same bodyweight.

Note that the % of total energy intake used by the brain is:

Homo sapiens : 20-25%
nonhuman primates: 8-10%
other mammals: 3-5%
est australopithecine: 11%

[To have a *relatively* large brain but the same intake requires that
other bodyparts are relatively shrunk. This is likely why humans are
light on muscle mass and digestive system compared to most other mammals
of the same size. Worse, the brain requires 16 time the energy supply as
the same mass of resting muscle.]

--
Oz
This post is worth absolutely nothing and is probably fallacious.
Note: soon (maybe already) only posts via despammed.com will be accepted.