Two Keys to Weight Loss

Two Keys to Weight Loss: Cut Energy Density and Trim Portion Size

A new study shows how remarkably easy it is to trick the appetite so as to
cause weight loss or weight gain. Pennsylvania State University researchers
prepared an Italian pasta bake for a group of 39 women on several different
days, but varied the recipe so that it was lower in calories on some
occasions (more vegetables, less cheese) and higher in calories at other
times. The researchers also varied the portion size from 500 grams to 700
grams and 900 grams.

They found that, when participants were served either the lower-calorie
version or a smaller portion at lunch, they did not compensate by eating
more at dinner. The average calorie intake fell by 221 calories with the
smallest and least energy-dense food.

The study shows that two different strategies-reducing portions, plus
choosing foods with low energy density, such as vegetables and fruits-work
independently to cause a marked reduction in calorie intake. In contrast,
increasing portion sizes and the use of calorie-dense foods, such as meat,
cheese, or oil, tends to increase calorie intake without the diner's
awareness.
Here is the reference:

Kral TVE, Roe LS, Rolls BJ. Combined effects of energy density and portion
size on energy intake in vwomen. Am J Clin Nutr 2004;79:962-8.

For information about nutrition and health, please visit www.pcrm.org.

I remember an old study where the subjects ate a liquid only diet from a
spout. They changed the caloric value of the liquid and waited. The
subjects needed about two weeks before they adjusted the volume of the
liquid they drank to compensate for the new caloric value.

In this context it makes the OP's test, of changing the calories of lunch
and then seeing if the dinner calories changed, meaningless. They needed to
run their study for several weeks, minimum.

"ta" wrote in message
...
Two Keys to Weight Loss: Cut Energy Density and Trim Portion Size

A new study shows how remarkably easy it is to trick the appetite so as to
cause weight loss or weight gain. Pennsylvania State University
researchers
prepared an Italian pasta bake for a group of 39 women on several
different
days, but varied the recipe so that it was lower in calories on some
occasions (more vegetables, less cheese) and higher in calories at other
times. The researchers also varied the portion size from 500 grams to 700
grams and 900 grams.

They found that, when participants were served either the lower-calorie
version or a smaller portion at lunch, they did not compensate by eating
more at dinner. The average calorie intake fell by 221 calories with the
smallest and least energy-dense food.

The study shows that two different strategies-reducing portions, plus
choosing foods with low energy density, such as vegetables and fruits-work
independently to cause a marked reduction in calorie intake. In contrast,
increasing portion sizes and the use of calorie-dense foods, such as meat,
cheese, or oil, tends to increase calorie intake without the diner's
awareness.
Here is the reference:

Kral TVE, Roe LS, Rolls BJ. Combined effects of energy density and portion
size on energy intake in vwomen. Am J Clin Nutr 2004;79:962-8.

For information about nutrition and health, please visit www.pcrm.org.

"ta" wrote in message .. .
Two Keys to Weight Loss: Cut Energy Density and Trim Portion Size

A new study shows how remarkably easy it is to trick the appetite so as to
cause weight loss or weight gain. Pennsylvania State University researchers
prepared an Italian pasta bake for a group of 39 women on several different
days, but varied the recipe so that it was lower in calories on some
occasions (more vegetables, less cheese) and higher in calories at other
times. The researchers also varied the portion size from 500 grams to 700
grams and 900 grams.

They found that, when participants were served either the lower-calorie
version or a smaller portion at lunch, they did not compensate by eating
more at dinner. The average calorie intake fell by 221 calories with the
smallest and least energy-dense food.

The study shows that two different strategies-reducing portions, plus
choosing foods with low energy density, such as vegetables and fruits-work
independently to cause a marked reduction in calorie intake. In contrast,
increasing portion sizes and the use of calorie-dense foods, such as meat,
cheese, or oil, tends to increase calorie intake without the diner's
awareness.
Here is the reference:

Kral TVE, Roe LS, Rolls BJ. Combined effects of energy density and portion
size on energy intake in vwomen. Am J Clin Nutr 2004;79:962-8.

For information about nutrition and health, please visit www.pcrm.org.

Asuming that calories are the only factor involved in weight
management in humans, then you may have a point, otherwise this is a
silly exercise in theoretical weight management. Calories do not
trigger fat storage, hormones do, insulin to be precise. Calories are
secondary to hormonal flunctuations.

TC

"ta" wrote in message .. .
Two Keys to Weight Loss: Cut Energy Density and Trim Portion Size

A new study shows how remarkably easy it is to trick the appetite so as to
cause weight loss or weight gain. Pennsylvania State University researchers
prepared an Italian pasta bake for a group of 39 women on several different
days, but varied the recipe so that it was lower in calories on some
occasions (more vegetables, less cheese) and higher in calories at other
times. The researchers also varied the portion size from 500 grams to 700
grams and 900 grams.

They found that, when participants were served either the lower-calorie
version or a smaller portion at lunch, they did not compensate by eating
more at dinner. The average calorie intake fell by 221 calories with the
smallest and least energy-dense food.

The study shows that two different strategies-reducing portions, plus
choosing foods with low energy density, such as vegetables and fruits-work
independently to cause a marked reduction in calorie intake. In contrast,
increasing portion sizes and the use of calorie-dense foods, such as meat,
cheese, or oil, tends to increase calorie intake without the diner's
awareness.
Here is the reference:

Kral TVE, Roe LS, Rolls BJ. Combined effects of energy density and portion
size on energy intake in vwomen. Am J Clin Nutr 2004;79:962-8.

For information about nutrition and health, please visit www.pcrm.org.

Also for your information:

Barbara J. Rolls, Ph.D., Johns Hopkins University School of Medicine
(1992); Professor of Nutrition, Penn State University. Consultant for
Knoll Pharmaceuticals and has received research support from, among
others, Knoll, P&G, and ILSI. Coauthored (with James O. Hill) a 1998
report for ILSI on "Carbohydrates and Weight Management." (phone
conversation w/ R. Collins, CSPI, December 6, 2000) (Newark
Star-Ledger, 2/17/97)Research on lipid and lipoprotein responses to
different diets partially supported by Abbott Laboratories. (Am. J.
Clin. Nurt. 2000;70:839-46) Research on age related impairments in the
regulation of food intake supported in part by the Campbell Soup
Company. (Am. J. Clin. Nutr. 1995;62:923-31)

If you want information about nutrition, www.pcrm.org is not a good
source. If you want info about domestic terrorism or extreme animal
rights groups or info about vegetarianism, it may be a good source.
Otherwise the entire organisation at PCRM are basically extreme
nut-cases that advovcate vegetarianism, not because it is healthy, but
because it will avoid the harming of poor beef cows, chickens, etc.
Hardly a scientific approach to nutrition.

TC

"tcomeau" wrote in message om...
..

If you want information about nutrition, www.pcrm.org is not a good
source. If you want info about domestic terrorism or extreme animal
rights groups or info about vegetarianism, it may be a good source.
Otherwise the entire organisation at PCRM are basically extreme
nut-cases that advovcate vegetarianism, not because it is healthy, but
because it will avoid the harming of poor beef cows, chickens, etc.
Hardly a scientific approach to nutrition.

Have you any evidence to support that assertion?

Ignoramus15978 wrote:
:: In article , ta wrote:
::: Two Keys to Weight Loss: Cut Energy Density and Trim Portion Size
:::
::: A new study shows how remarkably easy it is to trick the appetite
::: so as to cause weight loss or weight gain. Pennsylvania State
::: University researchers prepared an Italian pasta bake for a group
::: of 39 women on several different days, but varied the recipe so
::: that it was lower in calories on some occasions (more vegetables,
::: less cheese) and higher in calories at other times. The researchers
::: also varied the portion size from 500 grams to 700 grams and 900
::: grams.
:::
::: They found that, when participants were served either the
::: lower-calorie version or a smaller portion at lunch, they did not
::: compensate by eating more at dinner. The average calorie intake
::: fell by 221 calories with the smallest and least energy-dense food.
::
:: The real question is not what happens within one day,k but rather
:: what happens over a period of months.
::
::: The study shows that two different strategies-reducing portions,
::: plus choosing foods with low energy density, such as vegetables and
::: fruits-work independently to cause a marked reduction in calorie
::: intake. In contrast,
::
:: Did you know that lean meat is pretty low in energy density also?
::
:: For example, lean turkey breast has 117 calories per 87 grams.
::
::: increasing portion sizes and the use of calorie-dense foods, such
::: as meat, cheese, or oil, tends to increase calorie intake without
::: the diner's awareness.
::
:: Not all meat is calorie dense. However, eating a lot of low calorie
:: food is beneficial and I personally go through a few pounds of
:: vegetables every day.
::
:: My diet, pretty much, is mostly vegetables and meat and eggs. I eat
:: other stuff also, but in smaller quantities.
::
:: You see, I agree with you that vegetables are good, but concluding
:: from this that meat is bad is unwarranted.


What the article talks about is just low fat.....cut energy density (remove
fat) and trim postions....low carb works mainly by cutting appetite...even
thought portion control sooner or later becomes an issue

Again, another super-obvious study....make you wonder why they even
bother...

::
:: i
::
::: Here is the reference:
:::
::: Kral TVE, Roe LS, Rolls BJ. Combined effects of energy density and
::: portion size on energy intake in vwomen. Am J Clin Nutr
::: 2004;79:962-8.
:::
::: For information about nutrition and health, please visit
::: www.pcrm.org.

tcomeau wrote:
Two Keys to Weight Loss: Cut Energy Density and Trim Portion Size

A new study shows how remarkably easy it is to trick the appetite so as to
cause weight loss or weight gain. Pennsylvania State University researchers
prepared an Italian pasta bake for a group of 39 women on several different
days, but varied the recipe so that it was lower in calories on some
occasions (more vegetables, less cheese) and higher in calories at other
times. The researchers also varied the portion size from 500 grams to 700
grams and 900 grams.

They found that, when participants were served either the lower-calorie
version or a smaller portion at lunch, they did not compensate by eating
more at dinner. The average calorie intake fell by 221 calories with the
smallest and least energy-dense food.

The study shows that two different strategies-reducing portions, plus
choosing foods with low energy density, such as vegetables and fruits-work
independently to cause a marked reduction in calorie intake. In contrast,
increasing portion sizes and the use of calorie-dense foods, such as meat,
cheese, or oil, tends to increase calorie intake without the diner's
awareness.
Here is the reference:

Kral TVE, Roe LS, Rolls BJ. Combined effects of energy density and portion
size on energy intake in vwomen. Am J Clin Nutr 2004;79:962-8.

For information about nutrition and health, please visit www.pcrm.org.

Asuming that calories are the only factor involved in weight
management in humans,

They're the most significant factor.

then you may have a point, otherwise this is a
silly exercise in theoretical weight management.

No, it is not.

Calories do not trigger fat storage,

Consume more than your body needs and they end up as fat.

hormones do, insulin to be precise.

Wrong. Some people do have hormonal problems, but they're exceptions to the
rule. Many weight problems related to hormones, particularly with respect to
insulin, have those problems as a result -- not a cause -- of poor diet and
exercise habits. IOW, they got fat from too many calories and/or not enough
exercise and that caused problems related to insulin (diabetes, resistanace,
etc.). Stop putting the cart before the horse, chubby.

Calories are secondary to hormonal flunctuations.

Wrong, frog. You got fat before you ever had problems with insulin because you
ate too much for the activity level of your repulsively corpulent body.

On Wed, 02 Jun 2004 15:30:22 GMT, usual suspect wrote:

tcomeau wrote:
Two Keys to Weight Loss: Cut Energy Density and Trim Portion Size

A new study shows how remarkably easy it is to trick the appetite so
as to
cause weight loss or weight gain. Pennsylvania State University
researchers
prepared an Italian pasta bake for a group of 39 women on several
different
days, but varied the recipe so that it was lower in calories on some
occasions (more vegetables, less cheese) and higher in calories at
other
times. The researchers also varied the portion size from 500 grams to
700
grams and 900 grams.

They found that, when participants were served either the lower-calorie
version or a smaller portion at lunch, they did not compensate by
eating
more at dinner. The average calorie intake fell by 221 calories with
the
smallest and least energy-dense food.

The study shows that two different strategies-reducing portions, plus
choosing foods with low energy density, such as vegetables and
fruits-work
independently to cause a marked reduction in calorie intake. In
contrast,
increasing portion sizes and the use of calorie-dense foods, such as
meat,
cheese, or oil, tends to increase calorie intake without the diner's
awareness.
Here is the reference:

Kral TVE, Roe LS, Rolls BJ. Combined effects of energy density and
portion
size on energy intake in vwomen. Am J Clin Nutr 2004;79:962-8.

For information about nutrition and health, please visit www.pcrm.org.

Asuming that calories are the only factor involved in weight
management in humans,

They're the most significant factor.

then you may have a point, otherwise this is a
silly exercise in theoretical weight management.

No, it is not.

Calories do not trigger fat storage,

Consume more than your body needs and they end up as fat.

hormones do, insulin to be precise.

Wrong. Some people do have hormonal problems, but they're exceptions to
the rule. Many weight problems related to hormones, particularly with
respect to insulin, have those problems as a result -- not a cause -- of
poor diet and exercise habits. IOW, they got fat from too many calories
and/or not enough exercise and that caused problems related to insulin
(diabetes, resistanace, etc.). Stop putting the cart before the horse,
chubby.

Oh, you must mean the poor "low fat" diet espoused by the Government,
then, as that's what caused my insulin resistance. Or perhaps genetics,
but apparently you don't believe in genetics.

Calories are secondary to hormonal flunctuations.

Wrong, frog. You got fat before you ever had problems with insulin
because you ate too much for the activity level of your repulsively
corpulent body.


Do you live near CT? Do you ride a bike? If so, care to go for a
60+ mile bike ride with someone who's obese by BMI?

--
Bob in CT
Remove ".x" to reply

When one can't rally facts and logic to one's perspective, attack the
messenger, totally irrelevant as to the validity of the research
presented, unless you have specific evidence of fraud to the contrary.


Also for your information:

Barbara J. Rolls, Ph.D., Johns Hopkins University School of Medicine
(1992); Professor of Nutrition, Penn State University. Consultant for
Knoll Pharmaceuticals and has received research support from, among
others, Knoll, P&G, and ILSI. Coauthored (with James O. Hill) a 1998
report for ILSI on "Carbohydrates and Weight Management." (phone
conversation w/ R. Collins, CSPI, December 6, 2000) (Newark
Star-Ledger, 2/17/97)Research on lipid and lipoprotein responses to
different diets partially supported by Abbott Laboratories. (Am. J.
Clin. Nurt. 2000;70:839-46) Research on age related impairments in the
regulation of food intake supported in part by the Campbell Soup
Company. (Am. J. Clin. Nutr. 1995;62:923-31)

If you want information about nutrition, www.pcrm.org is not a good
source. If you want info about domestic terrorism or extreme animal
rights groups or info about vegetarianism, it may be a good source.
Otherwise the entire organisation at PCRM are basically extreme
nut-cases that advovcate vegetarianism, not because it is healthy, but
because it will avoid the harming of poor beef cows, chickens, etc.
Hardly a scientific approach to nutrition.

TC

"usual suspect" wrote in message
...

Wrong, frog. You got fat before you ever had problems with insulin because
you
ate too much for the activity level of your repulsively corpulent body.


LOL