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Carbohydrates; Why Size Matters
By Laura Turner
If I collected a dime for each time I’ve seen or
heard the word “carbohydrate” - or picked up a book on the subject, for that
matter - I’d be a wealthy woman. And of course we’ve all heard the buzzwords:
simple carb; complex carb; high carb; low carb; no carb.
But do we really know what a carbohydrate is? And are carbs really as bad and
fattening as we’re told they are?
In this article, I’ll make my best attempt to unveil the mystery of the
carbohydrate - and why it’s gotten such a bad rap. After all, it’s the molecule
both scientists and nutritionists know is the main source of the body’s energy.
Basic Chemistry:
First the boring stuff. The basic chemistry of a carbohydrate. I’ll keep it
brief: Carbohydrates contain a carbon atom attached to water molecules. This is
important because it’s the structure and size of a carbohydrate which influences
the speed by which it’s converted into glucose (sugar) and then into energy.
Why Are Carbs Useful?
Before we take a look at the different “sizes” of carbohydrates, let’s look at
why they are useful to us. Aside from supplying the body’s energy, carbs are
also useful for the proper functioning of internal organs, as well as proper
function of the muscles and nervous system. The most exciting feature of a
carbohydrate, in this writer’s opinion, however, is it’s ability to aid in
protein and fat metabolism. So as it turns out, when used wisely, carbohydrates
are actually useful in burning fat.
The Three Principal Carbs Found In Foods:
Next let’s take a look at the three basic carbohydrates found in foods (Still
boring but stay with me). They are: simple sugars, starches and fiber.
Simple Sugars come in two varieties. The monosaccharide (meaning one sugar) are
quickly digested and almost immediately utilized by the body due to their
“simple” structure (think fruits, fruit juices and honey).
The second, disaccharides, act in almost the same way and are one molecule
larger. The disaccharides, however, tend to be more of the refined sugars are
very sweet to taste (think white sugar, candy etc.)
The second basic type of carbs are the starches or what we would consider
complex carbs (the polysaccharides): foods such as potatoes, wheat, rice, corn.
These carbs are slow to break down and take some time to be converted into
energy.
Finally, there’s the fibers (think bran). Fibers don’t have a lot of energetic
value, however, they do lend some support to the body. Because they don’t add
much sugar to the system, they make it further through the pipeline to help with
intestinal function and elimination. Moreover, they reduce cholesterol and slow
fat absorption.
Why Size Matters
The theory behind a low carbohydrate diets is, when the body consumes too many
carbohydrates the excess will become stored by the body as fat. This is true.
When the body ingests a carbohydrate, it aims to convert it to glucose as soon
as it can, so that it can be utilized by the body. If there is some excess, no
problem, it will get stored as glycogen in the limited space of the muscles. The
trouble arises, when the stores exceeded capacity: the remaining molecules are
stored as fat in fat cells that can infinitely expand (horrors!).
Yet, what if there was a way to outsmart this system by using the different
“sizes” of carbohydrate molecules to your advantage? What if you could keep the
body burning carbs at a steady rate according to the speed of your metabolism
and your activity level?
Enter the glycemic index. The glycemic index is a scale which tells you (on a
food-by-food basis) the rate at which a carbohydrate is converted into glucose.
The scale is calibrated by glucose itself (which is rated at 100). The higher
the number the faster the conversion.
First used by diabetics to prevent flux in blood sugar, the glycemic index (GI)
has become a popular way to get all the benefits of carbohydrates without the
threat of fat storage.
Here’s what the scale looks like:
Low GI = 55 or less
Medium GI = 56 - 69
High GI = 70 or more
To see a chart with samples of some favorite foods visit:
http://thecompounder.com/GlycemicIndex.html
How Is The GI Helpful?
If weight loss or weight maintenance is your goal (isn’t it everyone’s?),
creating a diet around lower GI foods will decrease peaks in glucose levels.
It’s as simple as that.
You can implement this eating pattern by scanning the low glycemic foods and
aiming to consume a serving at each meal, this will also help you avoid both the
“highs and lows” of the refined sugar rush.
Higher glycemic foods can be useful, too, and are considered the “recovery”
foods. Medium and high GI foods should be consumed for up to two hours after
exercise to recover lost carbohydrates and maintain steady blood-sugar levels.
Because metabolism varies from person to person, it would be well worth your
time and effort to continue a personal study of the glycemic index. Enjoy your
carbs by checking in on your favorite foods and decide when it’s best to consume
them.
Where To Get This Information?
You can get the skinny on the glycemic indexes of all your favorite carbohydrate
foods. Check out the searchable data base at:
www.glycemicindex.com
In closing, here’s a few guidelines to help you put your carbs to good use:
*Aim to eat several small meals during the day. Choose one serving of carbs for
each, preferably low GI.
*When in doubt choose carbohydrates that are naturally occurring such as
vegetables and fruits.
*Minimize refined sugars whenever possible.
*When consuming breads aim for wheat instead of white.
*Try to substitute white potatoes with sweet and substitute brown rice for
white.
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Laura M. Turner is a
Certified Fitness Trainer and Certified
Holistic Health Practitioner Through the Association Of
Drugless Practitioners. She hosts Beauty And Body Online
(www.beauty-and-body.com) and
Publishes the New Body
News And Wellness Letter (
www.new-body-news.com)
Check out her latest book
Spiritual Fitness: The 7-Steps
to Living Well.
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