Article
by Tom Venuto,
NSCA-CPT, CSCS
The
Truth
About Fat Genes
"Battle Your
Biology? Fat Chance,"
proclaimed a headline recently in the health section of the New York
Post
newspaper. Quoting new research and citing psychologists, dietitians
and
physicians, the article says that more and more evidence proves that
your
weight is genetically determined, and if you're fat, "it's not your
fault."
"We've known for a while that genes - more than environment and
behavior
- explain obesity" argues Dr. James Rosen, an eating disorder
specialist
and professor at the University of Vermont.
While
genetics are definitely
a factor, believing you are destined to be overweight for life because
you've inherited "fat genes" is the most disempowering and
self-defeating
attitude you could ever adopt. The only way you’ll lose weight
permanently
is to accept total responsibility for yourself and acknowledge the fact
that you have the power to change, regardless what mother nature has
given
you to work with.
There's no
denying that heredity
plays a major role in how difficult it will be for you to lose fat. You
inherited a body type, a predetermined number of fat cells, a metabolic
rate and body chemistry just as you inherited your eye color and hair
color.
In the 1930's, Harvard psychologist Dr. William H. Sheldon developed a
classification system for these different body types called
"somatotyping."
While there are no absolutes, Sheldon identified three basic
somatotypes:
ectomorphs, mesomorphs and endomorphs.
Ectomorphs
are the lean,
lanky types. They are usually very thin and bony, with fast metabolisms
and extremely low body fat. An ectomorph can eat like a horse without
gaining
an ounce. Mesomorphs are the "genetically gifted." They are lean,
muscular
and naturally athletic. Mesomorphs lose fat and gain muscle with ease.
Endomorphs are the "fat retainers." Characterized by round features,
excess
body fat and large joints ("big bones"), endomorphs usually have great
difficulty in losing body fat. They have slow metabolisms, they are
often
carbohydrate sensitive, they gain fat quickly if they eat poorly or
don't
exercise, and they lose fat slowly - even on a healthy diet.
The
tendency of endomorphs
to store fat easily can be partly attributed to metabolic problems. For
example, endomorphs often metabolize carbohydrates inefficiently.
Normal
people can eat lots of carbohydrates - up to 60% of their total
calories
- and they still stay lean. Endomorphs produce too much insulin when
they
eat carbohydrates and this leads to increased fat storage and
difficulty
in losing existing fat. This condition is known as "insulin resistance"
or "Syndrome X."
Scientists
claim that the
tendency to gain weight easily may also be due to chemical imbalances
in
the brain that cause people to overeat. Researchers at Johns Hopkins
recently
announced the discovery a compound called C75 that blocks an
appetite-regulating
hormone in the hypothalamus. In mice injected with the substance, 30
percent
more weight was lost because the drug caused the mice to eat less. More
research is planned to develop a similar appetite suppressing drug for
humans. Unlike Xenical, which blocks fat absorption in the intestine,
this
new drug would affect the brain's chemistry so that people feel full
sooner.
Many
physicians and health
professionals consider these metabolic disorders and chemical
imbalances
as genetically transmitted "diseases" that require medical treatment.
"Obesity
is a disease and should be treated like one" says Jackie Newgent,
spokesperson
for the American Dietetic Association. This idea should be viewed with
a great deal of suspicion however, because weight loss is potentially
the
biggest market in the world for drug sales.
According
to Justin Gillis,
a staff writer for the Washington Post, more than 45 companies
worldwide
are trying to develop new obesity drugs, and the stakes couldn't be
higher.
Gillis writes, "In world where a blockbuster drug is worth $1 billion a
year in sales, analysts give $5 billion as the low estimate for sales
of
an important obesity drug. If a company developed a truly safe,
effective
weight loss drug, and sold it for $3 a day to one quarter of the 97
million
American adults estimated to be overweight, sales would exceed $26
billion
a year in this country alone."
Basically,
what the medical
community is trying to tell you is that if you are overweight, it's not
your fault; you were born fat, so don't feel guilty - and don't worry,
we have a drug that can "cure" you. Sounds like there's an ulterior
motive
at work here, wouldn't you agree? Before you run to get a prescription
for the next "miracle" drug, you'd better wonder whose interests are
being
served; yours or the pharmaceutical giants.
Besides,
drugs can never
be the solution if they treat the symptoms and not the cause. Drugs
should
be considered a last resort for the morbidly obese who have already
tried
everything else without success and who will face serious health
consequences
if they don't lose weight. The editors of obesity.com said it best:
"Weight
loss drugs do not take the place of diet, exercise, patience, and
perseverance."
"Dieting
can be an uphill
battle against your genes." says Post writer Joyce Cohen.
Unfortunately,
if you're an endomorph, Cohen is right. Losing weight is definitely
easier
for some people than for others and that doesn't seem fair. But that's
the way life is. Life isn't fair. Let's be honest; not everyone is
going
to become an Olympic Gold medallist, a Mr. America or a fitness model.
But don't despair - you are not doomed to live a life of fatness if you
don't have "athletic genes."
Obesity is
the result of
many influences. Genetics is only one of them. Like it or not, the
primary
cause of obesity is your own behavior. Most of the factors that affect
body composition are entirely under your control. These factors include
how much you eat, what you eat, when you eat, what type of exercise you
do, how frequently you exercise, how long you exercise and how hard you
exercise.
If you have
the genetic predisposition
towards obesity, you can lose fat like everyone else, you're just going
to have to work harder and longer at it than other people. "There is a
genetic component to weight," Says Dr. Thomas Wadden, a psychologist
from
Syracuse University, "but no one is destined to be obese. If weight has
been a major problem in your family, you may not be able to become as
thin
as you'd like, but you can lose weight."
If you find
losing weight
to be a slow and difficult process, the empowering thing to do is to
look
at it as asset, because overcoming this obstacle will force you to
develop
discipline, determination and persistence. These traits will carry over
to other areas of your life and make you a stronger person all around.
Arnold Schwarzennegger said, "Strength does not come from winning. Your
struggles develop your strength. When you overcome hardships, that is
strength."
The first
thing you must
do if you want to lose weight or succeed in any area of your life, is
to
accept complete responsibility for your situation. In a short but
powerful
little book called "As Man Thinketh," the author James Allen wrote,
"circumstances
do not make a man, they reveal him." What he meant was that we are not
products of our environment or our heredity (our "circumstances"),
instead,
we products of our own thinking and belief systems.
We create
our own circumstances
through positive thinking and positive action and we create negative
circumstances
through negative thinking and lack of action or wrong actions. In other
words, we are responsible for where we are, what we have and how our
bodies
look.
Some people
get very angry
with me when I tell them this: They say, "Wait a minute. Are you trying
to tell me that when bad things happen to me, it’s my own fault? That I
brought unemployment, financial hardships, failed relationships, weight
gain or even health problems onto myself? Because if that's what you're
saying, that's totally unfair!"
Well, my
friend, with very
few exceptions, (some things really are out of your control) that is
exactly
what I am saying.
If you
refuse to accept the
fact that you are 100% responsible for your weight, you will never be
successful.
When people find themselves in undesirable situations or they aren't
getting
the results they want, it’s all too easy to make excuses: It's my
genetics,
I have big bones, I have a slow metabolism, I don't have enough time to
exercise, etc. etc., etc. Making excuses is relinquishing control. It
is
conceding that you a victim of circumstances instead of the creator of
your circumstances. Stop blaming and start taking responsibility for
your
life. Take action! Start working out. Eat better. Do something - do
anything
- but don't just sit there on the couch and curse your chromosomes.
So, are you
a frustrated
"endomorph?" Do you feel like dieting is an uphill battle against your
genes? If your answer is "yes," please don’t just quit and chalk in up
to "bad genetics," and don't believe that drugs are the answer either -
they're not. Your genetics will largely dictate your athletic ability
and
how easily you will lose weight. That doesn't mean you can't get lean;
it only means that you're going to have to adjust your diet and
training
to fit your body type and you may have to work harder and be more
persistent
than the "genetically lucky" ones.
Maybe
obesity really should
be classified as a genetically inherited "disease." But frankly, if you
have a "disease" that forces you to learn more about exercise and
nutrition,
to eat nutritious foods, to adopt a healthier lifestyle, to develop a
strong
work ethic and to become a more persistent person, that sounds like a
blessing
in disguise to me.
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