RE: evolution and diet (was: FITNESS: Diet and Exercise)

From: gts (gts_2000@yahoo.com)
Date: Fri Apr 18 2003 - 12:36:42 MDT

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    Brian Atkins wrote:

    > Harvey as gts tried to point out to you, historical evidence
    > clearly shows some dramatic negative health changes- first back
    > when agriculture came along, and more recently as I tried to point
    > out here there was a very dramatic rise in heart disease (especially
    > the new form-heart attacks), cancer, etc. during the first half of
    > the 20th century.

    I've been meaning to address this question of the recent blossom in the 20th
    century of certain diseases before I run away for the Easter weekend...

    In the early to mid 1900's nutritional scientists started to blame saturated
    fat for heart disease. While such concerns are not totally without merit, it
    triggered an irrational fear of natural animal-based food products and
    inspired the explosion in highly unsaturated high omega-6 vegetable oils
    (worsening the already unhealthy Omega-6/Omega-3 balance), extremely
    unhealthy man-made trans-fatty acids (which make cell membranes less
    permeable), and high-carb highly glycemic processed foods that bill
    themselves as "low-fat" (which place a strain on the pancreas leading to
    diabetes and other associated diseases including heart disease). As Brian
    notes, it also led to the USDA high-carb grain-based "food pyramid". The
    food pyramid in turn led to feeding school children junk food for their
    school lunches. Kids in public schools started eating things like pizza and
    high-fructose corn syrup sodas for lunch. Those kids are now adults but the
    current generation of kids are still eating the same garbage. Many of their
    parents feed them the same kinds of foods for breakfast and dinner, having
    been brain-washed by the supposed wisdom of government sponsored nutrition
    science.

    These factors have placed us further away from the natural paleodiet than
    ever in the past. Since then we've seen an explosion in certain types of
    heart disease, obesity, type II diabetes, syndrome X (a pre-diabetic
    syndrome marked by insulin resistance) and other health problems.

    We are very fortunate that medical science has in many respects kept pace
    with the problems that come from poor diet. Were it not for the tremendous
    advances in medical science over the last century I think Americans would be
    in danger of extinction. :-)

    -gts



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