What
exactly are empty calories (1)? Empty calories come
from highly
processed foods. They are made up primarily of
poor quality sugars and fats. In comparison, nutrient dense
calories come from whole foods in their natural,
straight-from-the garden or straight-from-the animal form.
Some examples of processed foods high in empty
calories and low in nutritional value are soda pop, candy bars, or potato
chips.
To be a bit more specific
-- if
you compare a nutrient dense, baked potato with the empty calories of a
bag of potato chips with equal calories (100 calories each), you will find
that the baked potato contains twice the amount of dietary fiber (1.61 g
of fiber, while chips contain 0.75 g of fiber) and four times more vitamin
C (13.7 mg of vitamin C in baked potato and 3.4 mg in potato
chips).
So
technically speaking, an empty calorie has the same energy content as any
other calorie. What it doesn't have is the accompanying vitamins,
minerals, amino acids, enzymes, fiber, etc. that are found in whole foods.
Drinking a can of soda pop, for example, gives you the same burnable
energy fuel as eating any other food that has 200
calories. And herein lies one of the primary
problems with empty calories. As far as your body is concerned, when
you drink a can of soda pop or eat a candy bar, your body simply registers
the intake of calories. When calories come into the body, the body
reduces its urge for more calories by reducing appetite.
For
a period of time, then, your appetite is satiated. If you happened
to have that soda pop BEFORE you ate a nutrient dense meal, the odds are
you won't have much appetite to remind you to eat the good stuff.
And if you happen to be very young (under the age of 21), the odds are
even higher that you won't have your intellect as a back-up system to kick
in and override that lack of appetite. You'll just go merrily on
through the day, until the next time your appetite does kick in.
And
your appetite will kick in. Your cells did not receive the
macronutrients they require to do their daily work from the soda pop, so
the body has to keep asking for more food. If this time, you grab a
bag of cheetos around the time you probably should have sat down for a
complete meal, the same course of events is
likely to ensue. Again, you'll have little appetite to draw you to
the good stuff.
If
you are a parent who has trouble getting your children to eat their meals,
at this time in history, the odds are good that empty calories are
the culprit. We have come to call this syndrome "the fussy
child" or "the bad eater." But just cut out all empty
calories for two or three days and see if appetite doesn't return.
Even better, add a bit of exercise before meals, and see if the children
aren't racing you to the dinner table.
Over
time, the main problem with empty calories shows up: subclinical
malnutrition. Now, this wont be the kind of malnutrition we see in
starving countries. In fact, this kind of malnutrition can even be
present in an obese body. Or in a skinny fat person (this is a body
with all the health conditions of the obese person but without the
weight). It is the kind of malnutrition that comes from ingesting
calories but very little nutrition.
The
cells need protein, high quality, high fiber carbohydrates, and essential
fatty acids every day. In fact, they need these macronutrients three
times each day.
That's
why we call them macronutrients. The body cannot produce them
itself. They must be provided through eating. If the cells do
not get these nutrients, they must "make do." They have to
keep the brain, heart, liver, and other high priority systems running to
maintain life. So what nutrition there is, will go to these organs
first. Bones, teeth, skin, hair, eyes, hormones, etc. may be your
best first warning system (because these systems aren't immediately
required to maintain life).
More
importantly for most of us, malnutrition shows up as health symptoms such
as pain and fatigue. Eventually these kinds of ailments are given
disease names such as depression, migraine headaches, irritable bowel,
gastric reflux disease, sciatica, etc., etc. It is simply put,
impossible for the human body to maintain balance and health without the
building blocks it requires from nutrient dense food.
So
the problem with empty calories is that even though they may seem like
fun, they are very harmful to health and longevity. Be wise and keep
them truly as treats in your diet (and remember the definition of a treat
is something rare).
(1) Michael Jacobson, head of
the Center for Science in the Public Interest, coined this term in
1972.