For years we
heard that a
low-fat,
low-cholesterol
diet would
keep us
healthy and
help us lose
weight. And
many of us
jumped on
the
bandwagon,
eliminating
fat and
high-cholesterol
foods from
our diets.
Well,
unfortunately,
we were
doing it all
wrong.
Instead of
eliminating
fat
completely,
we should
have been
eliminating
the “bad
fats,” the
fats
associated
with obesity
and heart
disease and
eating the
“good fats,”
the fats
that
actually
help improve
blood
cholesterol
levels.
Before we
examine the
good fats
and bad
fats, let’s
talk about
cholesterol.
Cholesterol
- It’s been
ingrained
into our
brains that
cholesterol
causes heart
disease and
that we
should limit
our intake
of foods
that contain
it, but
dietary
cholesterol
is different
than blood
cholesterol.
Cholesterol
comes from
two
places—first,
from food
such as
meat, eggs,
and seafood,
and second,
from our
body. Our
liver makes
this waxy
substance
and links it
to carrier
proteins
called
lipoproteins.
These
lipoproteins
dissolve the
cholesterol
in blood and
carry it to
all parts of
your body.
Our body
needs
cholesterol
to help form
cell
membranes,
some
hormones,
and Vitamin
D.
You may have
heard of
“good” and
“bad”
cholesterol.
Well,
high-density
lipoproteins
(HDL) carry
cholesterol
from the
blood to the
liver. The
liver
processes
the
cholesterol
for
elimination
from the
body. If
there’s HDL
in the
blood, then
less
cholesterol
will be
deposited in
the coronary
arteries.
That’s why
it’s called
“good”
cholesterol.
Low-density
lipoproteins
(LDL), carry
cholesterol
from the
liver to the
rest of the
body. When
there is too
much in the
body, it is
deposited in
the coronary
arteries.
This is not
good. A
build-up of
cholesterol
in our
arteries
could
prevent
blood from
getting to
parts of our
heart. That
means that
our heart
won’t get
the oxygen
and
nutrients it
needs, which
could result
in heart
attack,
stroke, or
sudden
death. So,
if your LDL
is higher
than your
HDL, you’re
at a greater
risk for
developing
heart
disease.
It may come
as a
surprise,
but recent
studies have
shown that
the amount
of
cholesterol
in our food
is not
strongly
linked to
our blood
cholesterol
levels. It’s
the types of
fats you eat
that affect
your blood
cholesterol
levels.
Bad Fats -
There are
two fats
that you
should limit
your intake
of—saturated
and trans
fats.
Saturated
Fats -
Saturated
fats are
mostly
animal fats.
You find
them in
meat,
whole-milk
products,
poultry
skin, and
egg yolks.
Coconut oil
also has a
high amount
of saturated
fat.
Saturated
fats raise
both the
good and bad
blood
cholesterol.
Trans Fats -
Trans fats
are produced
through
hydrogenation—heating
oils in the
presence of
oxygen. Many
products
contain
trans fats
because the
fats help
them
maintain a
longer shelf
life.
Margarine
also
contains a
high amount
of trans
fats. Trans
fats are
especially
dangerous
because they
lower the
good
cholesterol,
HDL and
raise the
bad
cholesterol,
LDL.
Unfortunately,
most
products do
not tell you
how much
trans fat it
contains,
but you can
find out if
it’s in a
product by
looking at
the
ingredient
list. If the
ingredients
contain
hydrogenated
or
partially-hydrogenated
oils, then
it contains
trans fats.
Fortunately
in 2006,
manufacturers
will be
required to
list the
amount of
trans fat in
their
products on
the
nutrition
labels, so
it will be
easier for
you to find.
Good Fats -
Some fats
actually
improve
cholesterol
levels.
Polyunsaturated
Fats -
Polyunsaturated
fats are
found in
sunflower,
corn, and
soybean
oils. These
oils contain
Omega-6, an
essential
fatty acid.
However,
most people
get enough
Omega-6 in
their diet
and instead
need more
Omega-3.
Omega-3 is a
fatty acid
found in
fish and
walnuts.
Monounsaturated
Fats -
Monounsaturated
fats are
found in
canola,
peanut, and
olive oils.
Both types
of
unsaturated
fats
decrease the
bad
cholesterol,
LDL and
increase the
good
cholesterol,
HDL.
Now, just
because the
unsaturated
fats improve
your blood
cholesterol
levels, you
don’t have
the go-ahead
to eat all
of the olive
oil, butter
and nuts you
want. Fat of
any kind
does contain
calories,
and if
you’re
trying to
lose weight,
eat fat in
moderation,
and stay
away from
saturated
fats.
Arnel Ricafranca
Fitness Expert/Personal trainer
Founder of Fitness VIP
Online personal fitness trainer
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