How
Fats & Cholesterol Can Have a Major Impact on the Effectiveness
of Weight Loss Diets or Plans!
For
years we’ve heard that a low-fat, low-cholesterol weight
loss 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
and improve our chances of achieving our weight loss goals.
But before
we examine the benefits of 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. However, dietary cholesterol is different than
blood cholesterol.
Cholesterol
comes from two places…
1. From
food such as meat, eggs, and seafood; and
2. 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 doesn’t
get the oxygen and nutrients it needs, and this 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 bad fats that you should limit your intake of…
saturated fats and trans 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 can raise both
the good and bad blood cholesterol.
Trans
fats are produced through hydrogenation, ie heating oils in
the presence of oxygen. Many products contain trans fats because
the fats help them maintain a longer shelf life. Margarine
is a good example of a product that 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 easily find this out if by looking at the ingredient
list that is labelled on the product. If the ingredients contain
hydrogenated or partially-hydrogenated oils, then it contains
trans fats.
Fortunately
a new law in the United States will make it compulsory for
manufacturers in the United States to list the amount of trans
fat in their products on the nutrition labels. This new law
will take effect from 2006 and it is hoped that other counties
will soon follow suit.
Good
Fats
Regardless
of what you may have read or heard… some fats can actually
improve your cholesterol levels! Two of these good fats are
Polyunsaturated Fats and Monounsaturated Fats!
Polyunsaturated
fats are naturally 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 normal daily diet
and instead need more Omega-3, which is a fatty acid found
in fish and walnuts.
Monounsaturated
fats are naturally 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, this doesn’t mean you have the all clear to
go-ahead to eat all of the olive oil, butter and nuts you
want. It’s not that simple!
Fat of
any kind contains calories. So if you’re trying to lose
weight, as with anything, you need eat fats in moderation,
remembering to stay away from saturated fats.
Here’s
a simple tool to help your search for most foods to find their
nutritional value…
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