whisper
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Fatty acid analysis of wild ruminant tissues: evolutionary implications for reducing diet-related chronic disease
L Cordain, BAWatkins, GL Florant, M Kelher, L Rogers and Y Li
Introduction
Both quantitative and qualitative aspects of dietary lipid
intake exert important influence upon human health and
the expression of chronic disease. It is likely that human
dietary lipid requirements are genetically determined (Eaton,
1992; Eaton et al, 1998), and that the evolutionary, nutritional
selective pressures that have acted upon the ancestral
human lineage over the past 2.4 million years since the
emergence of our genus (Homo), may provide important
insight into optimal, present day, lipid intakes (Eaton,
1992; Eaton et al, 1998; Simopoulos, 1999; Simopoulos
et al, 1999). There is substantial evidence from both the
archaeological and ethnographic literature to show that
consumption of wild animal tissues played a predominant
role in the diet of early humans (Marean & Assefa, 1999;
Milton, 1999; Stanford & Bunn, 1999) as well as in historically
studied hunter-gatherers (Cordain et al, 2000). Recent
mean estimates of the plant-to-animal subsistence ratios in
229 hunter-gatherer societies, the best surrogates of Stone
Age humans, demonstrated that meat and other animalderived
foods would have provided on average 68% of the
total energy, and the remaining 32% of the average daily
energy would have come from plant sources (Cordain et al,
2000). Consequently, fats derived from wild game animals
almost always represented the primary lipid source in preagricultural human diets.
Pages:11
[thanks-thanks]pdf,336KB,http://www.mediafire.com/view/?mq408jjchxnu8zo[/thanks-thanks]
L Cordain, BAWatkins, GL Florant, M Kelher, L Rogers and Y Li
Introduction
Both quantitative and qualitative aspects of dietary lipid
intake exert important influence upon human health and
the expression of chronic disease. It is likely that human
dietary lipid requirements are genetically determined (Eaton,
1992; Eaton et al, 1998), and that the evolutionary, nutritional
selective pressures that have acted upon the ancestral
human lineage over the past 2.4 million years since the
emergence of our genus (Homo), may provide important
insight into optimal, present day, lipid intakes (Eaton,
1992; Eaton et al, 1998; Simopoulos, 1999; Simopoulos
et al, 1999). There is substantial evidence from both the
archaeological and ethnographic literature to show that
consumption of wild animal tissues played a predominant
role in the diet of early humans (Marean & Assefa, 1999;
Milton, 1999; Stanford & Bunn, 1999) as well as in historically
studied hunter-gatherers (Cordain et al, 2000). Recent
mean estimates of the plant-to-animal subsistence ratios in
229 hunter-gatherer societies, the best surrogates of Stone
Age humans, demonstrated that meat and other animalderived
foods would have provided on average 68% of the
total energy, and the remaining 32% of the average daily
energy would have come from plant sources (Cordain et al,
2000). Consequently, fats derived from wild game animals
almost always represented the primary lipid source in preagricultural human diets.
Pages:11
[thanks-thanks]pdf,336KB,http://www.mediafire.com/view/?mq408jjchxnu8zo[/thanks-thanks]
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