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Fast
Food Is Lure to Overweight Children
Excerpt by Daniel Q. Haney,
AP
Overweight children appear to be especially
susceptible to the lure of fast food, a study found. They stuff
themselves even more ravenously than other youngsters do and are
less able to compensate by eating sparingly the rest of the day.
The study is nutrition experts'
latest attempt to nail down the link they suspect exists between
fast food and the daunting increase in obesity, which now afflicts
millions of teenagers.
Even though the drive-through window
is often blamed for Americans' big and growing weight problem,
its exact role is less clear, since people overindulge in many
ways while getting little exercise. Certainly the meals can be
huge and calorie dense. But many indulge in the occasional triple
cheeseburger with bacon without bulking up.
"Everybody is eating fast food,
in all socio-economic groups," notes Dr. David Ludwig, a child
obesity expert. "But if everybody is eating it, why are some people
still thin?"
His team at Boston's Children's
Hospital set out to find the answer by setting up an experiment
at a food court. The volunteer eaters were 26 obese children and
28 who were of normal size.
"Eat as much or as little as you
like, until you have had enough," the youngsters were told. "There
is more food available, and you may eat as much as you want."
Everyone started out with the equivalent
of a supersize value meal of chicken nuggets, fries, cola and
cookies that added up to 2,100 calories. And eat they did. Large
or lean, the children wolfed down plenty of food.
"They consume more than half of
the calories they need for the whole day in about 20 minutes,"
Ludwig said.
But in the end, the big kids ate
more. The obese youngsters downed 67 percent of their daily calories
in one sitting, while the normal-size ones got 57 percent.
Next, the researchers made an unannounced
call to see how much the same youngsters eat over a whole day
when on their own. On a day they had fast food, the obese youngsters
ate a total of 400 more calories than on a day when they ate at
home. However, the lean kids ate the same amount of total calories
whether they had a fast food meal or not.
They concluded that overweight
children are more susceptible to gargantuan fast food meals because
they do not have or have somehow lost the ability
to even out their intake by cutting back over the rest of the
day.
"Do certain people have trouble
compensating for energy-dense fast food? This study suggests overweight
people may," said Simone French, a psychologist at the University
of Minnesota.
The research was presented at the
annual meeting of the North American Association for the Study
of Obesity, which concluded Wednesday. Among other reports at
the meeting:
_Researchers from Johns Hopkins
University have been following 1,337 men since their graduation
from medical school between 1948 and 1964. They found that the
average weight gain was one-third of a pound per year up to age
65. After that, weight plateaus, and losing weight in later years
is not healthy or normal.
_To test the theory that people
eat less if they take smaller bites, researchers from the Pennington
Biomedical Research Center in Baton Rouge, La., fitted overweight
volunteers with a "behavior modification tool" that "fits into
the upper palate of the mouth and reduces the size of the oral
cavity." In the two-day experiment, the gadget cut their daily
intake by 659 calories. A longer study will be necessary to prove
it works over time to reduce weight.
_Russ Lopez of Boston University
looked for a link between urban sprawl and obesity. He rated sprawl
in U.S. metropolitan areas on a 100-point scale and matched it
with the amount of physical activity people reported in a nationwide
survey. For each one-point increase in sprawl, people's physical
activity declined by one-third of 1 percent.
On
the Net:
http://www.naaso.org
Reference
Source 102
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