I want to start
by saying that fat is NOT bad for you. That is one of the biggest
misconceptions I hear in my office from patients all day long. We
actually need fat to burn fat and it's essential to our metabolism,
energy production and the proper function of all the organs in our
body. Many people may believe that if something is fat-free it is
better for you, but unfortunately that is not the case (if it was,
and that actually worked, there would be no overweight people in
this country). The biggest problem with fat free foods is that when
you take out the fat, it doesn't taste very good and so the
manufacturers have to add things to make it taste better. One of the
most added ingredients to solve this problem is sugar, and sugar is
by far worse for us than fat is.
Calorie wise,
all fats have the same number of calories, so weather you are
getting olive oil, avocado oil, corn oil, etc it's all 9 calories
per gram. Fats however are very complicated creatures and there are
quite a few things to look at when it comes to
them.
Trans fats,
Saturated fats, Unsaturated fats, Omega oils, what does this all
mean?
Technically, the only bad fats are trans fats
which are also called hydrogenated oils. These are oils that are
liquid at room temperature, but are processed by hydrogenation to
become solid at room temperature. The process of hydrogenation adds
a hydrogen molecule to the oil and thus changes the molecular
structure of it bringing it from a natural oil to an unnatural (not
found anywhere in nature) substance. Because our bodies have a tough
time processing and digesting things that they do not recognize,
these trans fats are never fully digested and go on to clog our
arteries and cause inflammation.
Saturated fats
usually come from animal sources like meats and dairy. These fats
when eaten in excess can also harm our bodies, but another important
thing to remember is the source of the fat. If the fat comes from an
animal that is raised organically and allowed to roam free, the
amount of fat in that piece of meat will be far less than its
factory farmed counterpart raised in a cage.
We also have
unsaturated fats which are divided into polyunsaturated and
monounsaturated. Monounsaturated fats are the healthiest and have
many heart benefits. Oils rich in monounsaturated fatty acids are
olive and avocado.
Omega 3, 6 and
9 are other words you may have seen on labels and in the press.
Omega 9's are monounsaturated fats and Omega 3 and 6's are
polyunsaturated fats. The main thing we need to know about these is
that omega 3's are anti-inflammatory, thus prevent and reverse
inflammation, omega 6's are pro-inflammatory which means they cause
inflammation and Omega 9's are neutral and heart healthy. 3's are
found in foods like fish in the form or EPA and DHA and flax in the
form of ALA. ALA converts to EPA and DHA which is what is utilized
in the body. Flax seed is a source of ALA but the body needs to
convert it to EPA and DHA because it can not use ALA. As we get
older we lose the ability to convert it and thus need to get it
directly from EPA/DHA from fish oil sources. Omega 9's are found in
olives, avocados and some nuts like macadamia nuts and 80% of the
fats you consume should be in the form of omega 9's monounsaturated
fats. These oils are also the best for cooking because they have
higher smoke points and will not oxidize and cause free radical
damage as some other vegetable oils will. Omega 6's are all other
oils including most vegetable oils. GLA, evening primrose and borage
oil are the only omega 6's we need to take in because our body can't
make those on its own.
Currently
Americans are not getting enough 3's and eating way to many 6's. We
used to eat 1 Omega 6 to 1 Omega 3, but now Americans consume 16-20
times more 6's than 3's and there is a huge problem with
inflammation, because remember omega 6's are pro- inflammatory. 50
percent of people suffer from a chronic inflammatory condition and
going back to "we are what we eat", the more 6's we eat the more we
become inflamed.
We are behind
almost every westernized nation in health; we are ranked # 25
because we eat so much inflammatory fat. Inflammation suppresses
your immune system and if it's suppressed you can't fight the cancer
cells, diabetes, infection etc. You may have heard the fish oils are
good for cholesterol, ever wonder why? Cholesterol is an
inflammatory marker and it goes up when there is inflammation going
on in the body. We have this problem because we have so many more
omega 6's which is why fish oils (omega 3's) work so well to lower
cholesterol.
I often hear
patients taking Omega supplements which are great, however there are
different kinds. Some of the popular ones are all in one Omega 3 6 9
pills. However as you can see from above, these would not always be
the best because we already have too much 6 and technically just
need the borage and fish oils. 9's are easy to get from foods so
it's not as necessary to supplement. Generally, Omega 3's in the
form of EPA/DHA is the better anti-inflammatory
supplement.
Krill Oil -
another great supplement
Krill comes from unpolluted
parts of the world so it's free from PCB's and mercury. Krill is a
little different from straight fish oil because it has natural
occurring phospholipids but also vitamin A and E and beta carotene.
It's a very small fish on the food chain so it gets eaten right away
before it gets polluted. It's also eaten by whales which are very
healthy and never get skin cancer. The Eskimos actually eat whale
and krill and even though 90 % of their diet is fat, they have no
heart disease or cancers because they are eating the good
fats. |