By
Dr. John McDougall
The body uses fat primarily for energy storage when no food is
available and secondary source of immediate fuel. Cholesterol is needed
for numerous cellular functions and to produce hormones, like vitamin D
and estrogen. The problem with fat and cholesterol is that we need so
little of both. The body produces all the cholesterol it needs. As for
fat, all plant foods contain adequate amounts of fats and only plants
make the essential fatty acids that promote good health. A deficiency of
essential fat would never occur when plant foods make up a substantial
part of the meals, therefore, it is never recommended for you to add
extra essential fats to your diet (like omega-3, fish, or flaxseed
oils).
Animal foods provide an overabundance of fat, especially the most
harmful kind, saturated fat, which raises blood cholesterol levels and
damages the arteries, causing heart disease and stroke.
Vegetable oils are not health foods
Poly- and monounsaturated fats - those contained in large amounts in
vegetable oils as well as in fish - have been shown to depress the
immune system, increase bleeding, and promote cancers, especially those
of the colon, prostate, and breast. All fats are easily stored making
people overweight, which lays the foundations for many other illnesses,
including heart disease, cancer, and adult-onset diabetes. Fat deprives
cells of oxygen, is a major producer of free radicals, which damage the
body's tissues.
All animal foods are rich sources of fat. Beef derives between 60 and
80 percent of its calories from fat; pork, between 80 and 95 percent;
chicken, between 30 and 50 percent; and fish, between five and 60
percent.
All meats are also rich in cholesterol. A 3 1/2 ounce serving of beef
contains 85 mg of cholesterol; pork contains 90 mg; mackerel fish
contains 95 mg; turkey 83 mg; tuna 63 mg; and chicken (skinned-white) 85
mg. Cholesterol, as I have been saying, leads to heart disease and many
other illnesses. Therefore, many of the foods that are commonly believed
to be health foods today, such as chicken and turkey, are in fact
promoters of disease. Plant foods never contain cholesterol.
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