THE AMERICAN DIET
I believe the answer lies in how the diet
of the American population has
changed
over the last 100 years. Our diet since the early 1900's has evolved
into an
abundance of progressively more unhealthy, life-threatening
foodstuffs
filled with harmful vegetable fats which
is also devoid of many
vitamins,
minerals and essential fatty acids as well. Our grandparents and
great-grandparents
who were raised in the late 1800's and early 1900's lived
a primary
agricultural existance with 80% of Americans living on small family
farms or
in rural areas. Before 1910, heart attacks were virtually unheard
of. By
1930, heart attacks accounted for no more than 3000 deaths/year. By
1960 that
number had risen to over 500,000, Genetics cannot explain this huge
increase
over one or two generations. Some lifestyle change caused this
increase.
What was it???
The Department of Agriculture began to keep
track of food "disappearance"
data around
1900 and noted a change in the consumption in the kind of fats
Americans
were eating. Butter consumption was declining while the use of
vegetable
oils, especially oils that had been hardened by a process called
"hydrogenation"
to resemble butter was increasing -- dramatically. By 1950
butter
comsumption had dropped from about eighteen pounds per person per year
to just
over ten. Margarine filled in the gap rising from about two pounds
per
person at the turn of the century to about eight. Simulataneously,
vegetable
oil consumption tripled from just under three pounds per person per
year to
more than ten!
The statistics point to one obvious
conclusion that is completely contrary
to our
current notions of what constitutes a "healthy diet". Americans
should
eat the traditional foods that nourished our ancestors including beef,
butter,
whole milk, eggs, and cheese. They should AVOID new-fangled
vegetable-based
oils that more-and-more, flood our supermarket shelves.
This
requires the complete rejection of the "Lipid Hypothesis" of
atherosclerosis
that states that narrowing of the arteries is a consequence
of
cholesterol being '"laid down" in the arterial wall. This theory
postulates
that saturated fat from animals sources raises blood cholesterol
levels
and leads to the deposition of this cholesterol and other fats as
plaques
in the arteries.
However, population studies from around the world do NOT support this
theory
and NO published study in the last 30 years has ever demonstrated
lowering
serum cholesterol by eating a "low fat, low cholesterol diet"
prevents
or reduces heart attack or death rate. For example, in 1968 the
International
Atherosclerosis Project examined 22,000 corpses from 14 nations
and found
arterial plaque was the SAME in all parts of the world - in
populations
that consumed large amounts of fatty animal products and those
who were
largely vegetarian, in those with high rates of heart disease and
populations
with little or no heart disease. This points to the fact that
thickening
of the arterial wall with age is perhaps an unavoidable process
yet does
not necessarily develope into clinical heart disease. It
invalidates
the Lipid Hypothesis of heart disease which also does not explain
the
tendency for fatal clots that occur in the coronaries ("coronary
thrombosis")
that cause myocardial infarction ( heart attack).