It's the kind of carbohydrates you consume, not the number, that
becomes a reflection of the number on your bathroom scale. Contrary
to popular belief, overweight people don't eat more carbohydrates
than those of normal weight. However, it was discovered that overweight
people were more inclined to eat an excess of refined carbohydrates
such as white bread and pasta, which trigger a rapid spike in blood
sugar.
The culprit of weight gain, refined carbohydrates, can be found
in processed foods high in sugar. Refined carbohydrates add on extra
pounds through their high glycemic index, which means they cause
a quick surge in blood sugar. The sugar is then stored in muscle
and if it is not used it turns into fat.
On the contrary, other carbohydrates such as whole grains, fruits
and vegetables don't have high glycemic indexes.
Even though statistics showed that people are eating less fat,
it was revealed that over the course of the past 20 years the rate
of obesity has been steadily increasing.
To determine if carbohydrates played a factor in obesity researchers
conducted a study by measuring the height and weight of nearly 600
healthy participants. One of the main requirements of the study
was for the participants to document the kind of carbohydrates they
ate for one year.
The study revealed two key findings:
-
People with a higher body mass index--a measure of weight that
factors in height -- tended to eat carbohydrates with a higher
glycemic index
-
The amount of carbohydrates people ate had no influence on
body mass index
Researchers of the study also noted that some countries are now
adding glycemic levels on food labels as a guideline to those who
are trying to lose weight or control diabetes.
American
Journal of Epidemiology February 15, 2005;161(4):359-367
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