A Weightloss and diet forum. WeightLossBanter

If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.

Go Back   Home » WeightLossBanter forum » alt.support.diet newsgroups » Low Carbohydrate Diets
Site Map Home Authors List Search Today's Posts Mark Forums Read Web Partners

Low-carb diet speeds initial weight loss: study



 
 
Thread Tools Display Modes
  #1  
Old March 24th, 2007, 02:34 AM posted to alt.support.diet.low-carb
Jake Martin
external usenet poster
 
Posts: 1
Default Low-carb diet speeds initial weight loss: study

Low-carb diet speeds initial weight loss: study
Fri Mar 23, 2:04 PM ET

NEW YORK (Reuters Health) - In a study of overweight and obese people, those
who went on a low carbohydrate diet lost more weight -- and more fat -- than
their peers who went on a low-fat, portion-controlled diet.

After 12 weeks on the low-carb plan, study participants had lost an average
of 4.9 kilograms (10.8 pounds), compared to 2.5 kg (5.5 pounds) for their
peers on the low-fat diet.
However, after the weight-maintenance phase of the study, which lasted
another 24 weeks, differences between the two groups in weight loss and fat
mass remained, but were no longer statistically significant.

The findings confirm that the low-carb diet tested in the study is a
"reasonable alternative" to cutting fat and controlling portions in order to
maintain a healthy weight, Dr. Kevin C. Maki of Radiant Research in Chicago
and colleagues conclude.

The approach Maki's team tested -- a reduced-glycemic-load (RGL) diet --
required people to restrict their carbohydrate intake and eat more low
glycemic index (GI) foods, meaning foods that produce a relatively small,
gradual increase in blood sugar levels. Low GI foods generally are rich in
fiber, consist of more complex carbohydrates, and include vegetables, beans
and whole grains.

Study participants on the RGL diet did not eat certain high-carb foods, such
as fruits and starches, for the first two weeks, and also abstained from
alcohol, after which they introduced low-GI foods and were allowed to drink
moderate amounts of alcohol. But they were allowed to eat as much of the
permitted foods as they wanted. Those on the low-fat diet were instructed to
reduce their energy intake 500 to 800 calories per day by eliminating
high-fat foods and controlling portion sizes.

After 12 weeks, study participants in either group could continue on the
weight loss diet or switch to a weight maintenance plan.

At 12 weeks, the low-carb group had lost significantly more weight, and also
more fat -- 1.9 kg (4.2 pounds) of fat vs. 0.9 kg (2 pounds) for the low-fat
diet group.

By 36 weeks, the low-carb group had kept off 4.5 kg (10 pounds), compared to
2.6 kg (5.7 pounds) for the low-fat group, not a huge difference.

Low-carb diet participants had maintained a 2 kg (4.4 pounds) loss of fat
weight, compared to 1.3 kg (2.9 pounds) for the low fat group, which again
was not a significant difference.

The researchers say more research is needed to clarify the mechanisms
responsible for the greater initial losses of body weight and fat associated
with the RGL diet, to evaluate the persistence of these losses over longer
treatment periods, and to obtain greater insight into strategies that would
improve long-term weight-loss maintenance."

SOURCE: American Journal of Clinical Nutrition, March 2007.



  #2  
Old March 24th, 2007, 03:46 AM posted to alt.support.diet.low-carb
Jbuch
external usenet poster
 
Posts: 429
Default Another 10 Pounder Study -- Low-carb diet speeds initial weight

I wonder what might be a proper design for a study to show what works
well for major obesity reduction and maintainence of that weight loss.

These little piddly 10 pound average weight reduction studies that have
cropped up in the last few years clearly aren't oriented to solving the
obesity problem.

They may be fine for a little "trim up", but if they continue in the
same vein, it won't make any movement to cracking the "Obesity Problem".
I can imagine that the proposals to get the research dollars bang about
the severity of the "Obesity Epidemic" and then deliver a small 10 pound
bag of average eliminated fat.

10 pounds of fat isn't a cure for obesity.

Can we have "truth in proposal writing" laws written?

Jim


Jake Martin wrote:
Low-carb diet speeds initial weight loss: study
Fri Mar 23, 2:04 PM ET

NEW YORK (Reuters Health) - In a study of overweight and obese people, those
who went on a low carbohydrate diet lost more weight -- and more fat -- than
their peers who went on a low-fat, portion-controlled diet.

After 12 weeks on the low-carb plan, study participants had lost an average
of 4.9 kilograms (10.8 pounds), compared to 2.5 kg (5.5 pounds) for their
peers on the low-fat diet.
However, after the weight-maintenance phase of the study, which lasted
another 24 weeks, differences between the two groups in weight loss and fat
mass remained, but were no longer statistically significant.

The findings confirm that the low-carb diet tested in the study is a
"reasonable alternative" to cutting fat and controlling portions in order to
maintain a healthy weight, Dr. Kevin C. Maki of Radiant Research in Chicago
and colleagues conclude.

The approach Maki's team tested -- a reduced-glycemic-load (RGL) diet --
required people to restrict their carbohydrate intake and eat more low
glycemic index (GI) foods, meaning foods that produce a relatively small,
gradual increase in blood sugar levels. Low GI foods generally are rich in
fiber, consist of more complex carbohydrates, and include vegetables, beans
and whole grains.

Study participants on the RGL diet did not eat certain high-carb foods, such
as fruits and starches, for the first two weeks, and also abstained from
alcohol, after which they introduced low-GI foods and were allowed to drink
moderate amounts of alcohol. But they were allowed to eat as much of the
permitted foods as they wanted. Those on the low-fat diet were instructed to
reduce their energy intake 500 to 800 calories per day by eliminating
high-fat foods and controlling portion sizes.

After 12 weeks, study participants in either group could continue on the
weight loss diet or switch to a weight maintenance plan.

At 12 weeks, the low-carb group had lost significantly more weight, and also
more fat -- 1.9 kg (4.2 pounds) of fat vs. 0.9 kg (2 pounds) for the low-fat
diet group.

By 36 weeks, the low-carb group had kept off 4.5 kg (10 pounds), compared to
2.6 kg (5.7 pounds) for the low-fat group, not a huge difference.

Low-carb diet participants had maintained a 2 kg (4.4 pounds) loss of fat
weight, compared to 1.3 kg (2.9 pounds) for the low fat group, which again
was not a significant difference.

The researchers say more research is needed to clarify the mechanisms
responsible for the greater initial losses of body weight and fat associated
with the RGL diet, to evaluate the persistence of these losses over longer
treatment periods, and to obtain greater insight into strategies that would
improve long-term weight-loss maintenance."

SOURCE: American Journal of Clinical Nutrition, March 2007.



  #3  
Old March 24th, 2007, 12:10 PM posted to alt.support.diet.low-carb
[email protected]
external usenet poster
 
Posts: 7
Default Low-carb diet speeds initial weight loss: study

Hi friend ,

GLOBAL JOBS ONLINE

Join this our bogs there is solution for jobs seeker
http://globaljobsonline.blogspot.com

Post your valuable comments; so you can get experts advice & tips

Best regards,
Source4you Team


On Mar 23, 5:34 pm, "Jake Martin" wrote:
Low-carb diet speeds initial weight loss: study
Fri Mar 23, 2:04 PM ET

NEW YORK (Reuters Health) - In a study of overweight and obese people, those
who went on a low carbohydrate diet lost more weight -- and more fat -- than
their peers who went on a low-fat, portion-controlled diet.

After 12 weeks on the low-carb plan, study participants had lost an average
of 4.9 kilograms (10.8 pounds), compared to 2.5 kg (5.5 pounds) for their
peers on the low-fat diet.
However, after the weight-maintenance phase of the study, which lasted
another 24 weeks, differences between the two groups in weight loss and fat
mass remained, but were no longer statistically significant.

The findings confirm that the low-carb diet tested in the study is a
"reasonable alternative" to cutting fat and controlling portions in order to
maintain a healthy weight, Dr. Kevin C. Maki of Radiant Research in Chicago
and colleagues conclude.

The approach Maki's team tested -- a reduced-glycemic-load (RGL) diet --
required people to restrict their carbohydrate intake and eat more low
glycemic index (GI) foods, meaning foods that produce a relatively small,
gradual increase in blood sugar levels. Low GI foods generally are rich in
fiber, consist of more complex carbohydrates, and include vegetables, beans
and whole grains.

Study participants on the RGL diet did not eat certain high-carb foods, such
as fruits and starches, for the first two weeks, and also abstained from
alcohol, after which they introduced low-GI foods and were allowed to drink
moderate amounts of alcohol. But they were allowed to eat as much of the
permitted foods as they wanted. Those on the low-fat diet were instructed to
reduce their energy intake 500 to 800 calories per day by eliminating
high-fat foods and controlling portion sizes.

After 12 weeks, study participants in either group could continue on the
weight loss diet or switch to a weight maintenance plan.

At 12 weeks, the low-carb group had lost significantly more weight, and also
more fat -- 1.9 kg (4.2 pounds) of fat vs. 0.9 kg (2 pounds) for the low-fat
diet group.

By 36 weeks, the low-carb group had kept off 4.5 kg (10 pounds), compared to
2.6 kg (5.7 pounds) for the low-fat group, not a huge difference.

Low-carb diet participants had maintained a 2 kg (4.4 pounds) loss of fat
weight, compared to 1.3 kg (2.9 pounds) for the low fat group, which again
was not a significant difference.

The researchers say more research is needed to clarify the mechanisms
responsible for the greater initial losses of body weight and fat associated
with the RGL diet, to evaluate the persistence of these losses over longer
treatment periods, and to obtain greater insight into strategies that would
improve long-term weight-loss maintenance."

SOURCE: American Journal of Clinical Nutrition, March 2007.



  #4  
Old March 24th, 2007, 12:10 PM posted to alt.support.diet.low-carb
[email protected]
external usenet poster
 
Posts: 7
Default Another 10 Pounder Study -- Low-carb diet speeds initial weight loss: study

Hi friend ,

GLOBAL JOBS ONLINE

Join this our bogs there is solution for jobs seeker
http://globaljobsonline.blogspot.com

Post your valuable comments; so you can get experts advice & tips

Best regards,
Source4you Team



On Mar 23, 6:46 pm, Jbuch wrote:
I wonder what might be a proper design for a study to show what works
well for major obesity reduction and maintainence of that weight loss.

These little piddly 10 pound average weight reduction studies that have
cropped up in the last few years clearly aren't oriented to solving the
obesity problem.

They may be fine for a little "trim up", but if they continue in the
same vein, it won't make any movement to cracking the "Obesity Problem".
I can imagine that the proposals to get the research dollars bang about
the severity of the "Obesity Epidemic" and then deliver a small 10 pound
bag of average eliminated fat.

10 pounds of fat isn't a cure for obesity.

Can we have "truth in proposal writing" laws written?

Jim



Jake Martin wrote:
Low-carb diet speeds initial weight loss: study
Fri Mar 23, 2:04 PM ET


NEW YORK (Reuters Health) - In a study of overweight and obese people, those
who went on a low carbohydrate diet lost more weight -- and more fat -- than
their peers who went on a low-fat, portion-controlled diet.


After 12 weeks on the low-carb plan, study participants had lost an average
of 4.9 kilograms (10.8 pounds), compared to 2.5 kg (5.5 pounds) for their
peers on the low-fat diet.
However, after the weight-maintenance phase of the study, which lasted
another 24 weeks, differences between the two groups in weight loss and fat
mass remained, but were no longer statistically significant.


The findings confirm that the low-carb diet tested in the study is a
"reasonable alternative" to cutting fat and controlling portions in order to
maintain a healthy weight, Dr. Kevin C. Maki of Radiant Research in Chicago
and colleagues conclude.


The approach Maki's team tested -- a reduced-glycemic-load (RGL) diet --
required people to restrict their carbohydrate intake and eat more low
glycemic index (GI) foods, meaning foods that produce a relatively small,
gradual increase in blood sugar levels. Low GI foods generally are rich in
fiber, consist of more complex carbohydrates, and include vegetables, beans
and whole grains.


Study participants on the RGL diet did not eat certain high-carb foods, such
as fruits and starches, for the first two weeks, and also abstained from
alcohol, after which they introduced low-GI foods and were allowed to drink
moderate amounts of alcohol. But they were allowed to eat as much of the
permitted foods as they wanted. Those on the low-fat diet were instructed to
reduce their energy intake 500 to 800 calories per day by eliminating
high-fat foods and controlling portion sizes.


After 12 weeks, study participants in either group could continue on the
weight loss diet or switch to a weight maintenance plan.


At 12 weeks, the low-carb group had lost significantly more weight, and also
more fat -- 1.9 kg (4.2 pounds) of fat vs. 0.9 kg (2 pounds) for the low-fat
diet group.


By 36 weeks, the low-carb group had kept off 4.5 kg (10 pounds), compared to
2.6 kg (5.7 pounds) for the low-fat group, not a huge difference.


Low-carb diet participants had maintained a 2 kg (4.4 pounds) loss of fat
weight, compared to 1.3 kg (2.9 pounds) for the low fat group, which again
was not a significant difference.


The researchers say more research is needed to clarify the mechanisms
responsible for the greater initial losses of body weight and fat associated
with the RGL diet, to evaluate the persistence of these losses over longer
treatment periods, and to obtain greater insight into strategies that would
improve long-term weight-loss maintenance."


SOURCE: American Journal of Clinical Nutrition, March 2007.- Hide quoted text -


- Show quoted text -



  #5  
Old March 24th, 2007, 12:11 PM posted to alt.support.diet.low-carb
[email protected]
external usenet poster
 
Posts: 7
Default Low-carb diet speeds initial weight loss: study

Hi friend ,

Join this our bogs there is solution for jobs seeker
http://globaljobsonline.blogspot.com

Post your valuable comments; so you can get experts advice & tips
GLOBAL JOBS ONLINE

Best regards,
Source4you Team


On Mar 23, 5:34 pm, "Jake Martin" wrote:
Low-carb diet speeds initial weight loss: study
Fri Mar 23, 2:04 PM ET

NEW YORK (Reuters Health) - In a study of overweight and obese people, those
who went on a low carbohydrate diet lost more weight -- and more fat -- than
their peers who went on a low-fat, portion-controlled diet.

After 12 weeks on the low-carb plan, study participants had lost an average
of 4.9 kilograms (10.8 pounds), compared to 2.5 kg (5.5 pounds) for their
peers on the low-fat diet.
However, after the weight-maintenance phase of the study, which lasted
another 24 weeks, differences between the two groups in weight loss and fat
mass remained, but were no longer statistically significant.

The findings confirm that the low-carb diet tested in the study is a
"reasonable alternative" to cutting fat and controlling portions in order to
maintain a healthy weight, Dr. Kevin C. Maki of Radiant Research in Chicago
and colleagues conclude.

The approach Maki's team tested -- a reduced-glycemic-load (RGL) diet --
required people to restrict their carbohydrate intake and eat more low
glycemic index (GI) foods, meaning foods that produce a relatively small,
gradual increase in blood sugar levels. Low GI foods generally are rich in
fiber, consist of more complex carbohydrates, and include vegetables, beans
and whole grains.

Study participants on the RGL diet did not eat certain high-carb foods, such
as fruits and starches, for the first two weeks, and also abstained from
alcohol, after which they introduced low-GI foods and were allowed to drink
moderate amounts of alcohol. But they were allowed to eat as much of the
permitted foods as they wanted. Those on the low-fat diet were instructed to
reduce their energy intake 500 to 800 calories per day by eliminating
high-fat foods and controlling portion sizes.

After 12 weeks, study participants in either group could continue on the
weight loss diet or switch to a weight maintenance plan.

At 12 weeks, the low-carb group had lost significantly more weight, and also
more fat -- 1.9 kg (4.2 pounds) of fat vs. 0.9 kg (2 pounds) for the low-fat
diet group.

By 36 weeks, the low-carb group had kept off 4.5 kg (10 pounds), compared to
2.6 kg (5.7 pounds) for the low-fat group, not a huge difference.

Low-carb diet participants had maintained a 2 kg (4.4 pounds) loss of fat
weight, compared to 1.3 kg (2.9 pounds) for the low fat group, which again
was not a significant difference.

The researchers say more research is needed to clarify the mechanisms
responsible for the greater initial losses of body weight and fat associated
with the RGL diet, to evaluate the persistence of these losses over longer
treatment periods, and to obtain greater insight into strategies that would
improve long-term weight-loss maintenance."

SOURCE: American Journal of Clinical Nutrition, March 2007.



  #6  
Old March 24th, 2007, 12:12 PM posted to alt.support.diet.low-carb
[email protected]
external usenet poster
 
Posts: 7
Default Another 10 Pounder Study -- Low-carb diet speeds initial weight loss: study

GLOBAL JOBS ONLINE

Hi friend ,

Join this our bogs there is solution for jobs seeker
http://globaljobsonline.blogspot.com
Post your valuable comments; so you can get experts advice & tips

Best regards,
Source4you Team




On Mar 24, 3:10 am, wrote:
Hi friend ,

GLOBAL JOBS ONLINE

Join this our bogs there is solution for jobs seekerhttp://globaljobsonline.blogspot.com

Post your valuable comments; so you can get experts advice & tips

Best regards,
Source4you Team

On Mar 23, 6:46 pm, Jbuch wrote:



I wonder what might be a proper design for a study to show what works
well for major obesity reduction and maintainence of that weight loss.


These little piddly 10 pound average weight reduction studies that have
cropped up in the last few years clearly aren't oriented to solving the
obesity problem.


They may be fine for a little "trim up", but if they continue in the
same vein, it won't make any movement to cracking the "Obesity Problem".
I can imagine that the proposals to get the research dollars bang about
the severity of the "Obesity Epidemic" and then deliver a small 10 pound
bag of average eliminated fat.


10 pounds of fat isn't a cure for obesity.


Can we have "truth in proposal writing" laws written?


Jim


Jake Martin wrote:
Low-carb diet speeds initial weight loss: study
Fri Mar 23, 2:04 PM ET


NEW YORK (Reuters Health) - In a study of overweight and obese people, those
who went on a low carbohydrate diet lost more weight -- and more fat -- than
their peers who went on a low-fat, portion-controlled diet.


After 12 weeks on the low-carb plan, study participants had lost an average
of 4.9 kilograms (10.8 pounds), compared to 2.5 kg (5.5 pounds) for their
peers on the low-fat diet.
However, after the weight-maintenance phase of the study, which lasted
another 24 weeks, differences between the two groups in weight loss and fat
mass remained, but were no longer statistically significant.


The findings confirm that the low-carb diet tested in the study is a
"reasonable alternative" to cutting fat and controlling portions in order to
maintain a healthy weight, Dr. Kevin C. Maki of Radiant Research in Chicago
and colleagues conclude.


The approach Maki's team tested -- a reduced-glycemic-load (RGL) diet --
required people to restrict their carbohydrate intake and eat more low
glycemic index (GI) foods, meaning foods that produce a relatively small,
gradual increase in blood sugar levels. Low GI foods generally are rich in
fiber, consist of more complex carbohydrates, and include vegetables, beans
and whole grains.


Study participants on the RGL diet did not eat certain high-carb foods, such
as fruits and starches, for the first two weeks, and also abstained from
alcohol, after which they introduced low-GI foods and were allowed to drink
moderate amounts of alcohol. But they were allowed to eat as much of the
permitted foods as they wanted. Those on the low-fat diet were instructed to
reduce their energy intake 500 to 800 calories per day by eliminating
high-fat foods and controlling portion sizes.


After 12 weeks, study participants in either group could continue on the
weight loss diet or switch to a weight maintenance plan.


At 12 weeks, the low-carb group had lost significantly more weight, and also
more fat -- 1.9 kg (4.2 pounds) of fat vs. 0.9 kg (2 pounds) for the low-fat
diet group.


By 36 weeks, the low-carb group had kept off 4.5 kg (10 pounds), compared to
2.6 kg (5.7 pounds) for the low-fat group, not a huge difference.


Low-carb diet participants had maintained a 2 kg (4.4 pounds) loss of fat
weight, compared to 1.3 kg (2.9 pounds) for the low fat group, which again
was not a significant difference.


The researchers say more research is needed to clarify the mechanisms
responsible for the greater initial losses of body weight and fat associated
with the RGL diet, to evaluate the persistence of these losses over longer
treatment periods, and to obtain greater insight into strategies that would
improve long-term weight-loss maintenance."


SOURCE: American Journal of Clinical Nutrition, March 2007.- Hide quoted text -


- Show quoted text -- Hide quoted text -


- Show quoted text -



  #7  
Old March 24th, 2007, 12:12 PM posted to alt.support.diet.low-carb
[email protected]
external usenet poster
 
Posts: 7
Default Low-carb diet speeds initial weight loss: study

Hi friend ,

Join this our bogs there is solution for jobs seeker
http://globaljobsonline.blogspot.com
Post your valuable comments; so you can get experts advice & tips

Best regards,
Source4you Team




On Mar 24, 3:10 am, wrote:
Hi friend ,

GLOBAL JOBS ONLINE

Join this our bogs there is solution for jobs seekerhttp://globaljobsonline.blogspot.com

Post your valuable comments; so you can get experts advice & tips

Best regards,
Source4you Team

On Mar 23, 5:34 pm, "Jake Martin" wrote:



Low-carb diet speeds initial weight loss: study
Fri Mar 23, 2:04 PM ET


NEW YORK (Reuters Health) - In a study of overweight and obese people, those
who went on a low carbohydrate diet lost more weight -- and more fat -- than
their peers who went on a low-fat, portion-controlled diet.


After 12 weeks on the low-carb plan, study participants had lost an average
of 4.9 kilograms (10.8 pounds), compared to 2.5 kg (5.5 pounds) for their
peers on the low-fat diet.
However, after the weight-maintenance phase of the study, which lasted
another 24 weeks, differences between the two groups in weight loss and fat
mass remained, but were no longer statistically significant.


The findings confirm that the low-carb diet tested in the study is a
"reasonable alternative" to cutting fat and controlling portions in order to
maintain a healthy weight, Dr. Kevin C. Maki of Radiant Research in Chicago
and colleagues conclude.


The approach Maki's team tested -- a reduced-glycemic-load (RGL) diet --
required people to restrict their carbohydrate intake and eat more low
glycemic index (GI) foods, meaning foods that produce a relatively small,
gradual increase in blood sugar levels. Low GI foods generally are rich in
fiber, consist of more complex carbohydrates, and include vegetables, beans
and whole grains.


Study participants on the RGL diet did not eat certain high-carb foods, such
as fruits and starches, for the first two weeks, and also abstained from
alcohol, after which they introduced low-GI foods and were allowed to drink
moderate amounts of alcohol. But they were allowed to eat as much of the
permitted foods as they wanted. Those on the low-fat diet were instructed to
reduce their energy intake 500 to 800 calories per day by eliminating
high-fat foods and controlling portion sizes.


After 12 weeks, study participants in either group could continue on the
weight loss diet or switch to a weight maintenance plan.


At 12 weeks, the low-carb group had lost significantly more weight, and also
more fat -- 1.9 kg (4.2 pounds) of fat vs. 0.9 kg (2 pounds) for the low-fat
diet group.


By 36 weeks, the low-carb group had kept off 4.5 kg (10 pounds), compared to
2.6 kg (5.7 pounds) for the low-fat group, not a huge difference.


Low-carb diet participants had maintained a 2 kg (4.4 pounds) loss of fat
weight, compared to 1.3 kg (2.9 pounds) for the low fat group, which again
was not a significant difference.


The researchers say more research is needed to clarify the mechanisms
responsible for the greater initial losses of body weight and fat associated
with the RGL diet, to evaluate the persistence of these losses over longer
treatment periods, and to obtain greater insight into strategies that would
improve long-term weight-loss maintenance."


SOURCE: American Journal of Clinical Nutrition, March 2007.- Hide quoted text -


- Show quoted text -



  #8  
Old March 24th, 2007, 02:06 PM posted to alt.support.diet.low-carb
[email protected]
external usenet poster
 
Posts: 993
Default Another 10 Pounder Study -- Low-carb diet speeds initial weight loss: study

On Mar 23, 9:46 pm, Jbuch wrote:
I wonder what might be a proper design for a study to show what works
well for major obesity reduction and maintainence of that weight loss.

These little piddly 10 pound average weight reduction studies that have
cropped up in the last few years clearly aren't oriented to solving the
obesity problem.

They may be fine for a little "trim up", but if they continue in the
same vein, it won't make any movement to cracking the "Obesity Problem".
I can imagine that the proposals to get the research dollars bang about
the severity of the "Obesity Epidemic" and then deliver a small 10 pound
bag of average eliminated fat.

10 pounds of fat isn't a cure for obesity.

Can we have "truth in proposal writing" laws written?

Jim



Jake Martin wrote:
Low-carb diet speeds initial weight loss: study
Fri Mar 23, 2:04 PM ET


NEW YORK (Reuters Health) - In a study of overweight and obese people, those
who went on a low carbohydrate diet lost more weight -- and more fat -- than
their peers who went on a low-fat, portion-controlled diet.


After 12 weeks on the low-carb plan, study participants had lost an average
of 4.9 kilograms (10.8 pounds), compared to 2.5 kg (5.5 pounds) for their
peers on the low-fat diet.
However, after the weight-maintenance phase of the study, which lasted
another 24 weeks, differences between the two groups in weight loss and fat
mass remained, but were no longer statistically significant.


The findings confirm that the low-carb diet tested in the study is a
"reasonable alternative" to cutting fat and controlling portions in order to
maintain a healthy weight, Dr. Kevin C. Maki of Radiant Research in Chicago
and colleagues conclude.


The approach Maki's team tested -- a reduced-glycemic-load (RGL) diet --
required people to restrict their carbohydrate intake and eat more low
glycemic index (GI) foods, meaning foods that produce a relatively small,
gradual increase in blood sugar levels. Low GI foods generally are rich in
fiber, consist of more complex carbohydrates, and include vegetables, beans
and whole grains.


Study participants on the RGL diet did not eat certain high-carb foods, such
as fruits and starches, for the first two weeks, and also abstained from
alcohol, after which they introduced low-GI foods and were allowed to drink
moderate amounts of alcohol. But they were allowed to eat as much of the
permitted foods as they wanted. Those on the low-fat diet were instructed to
reduce their energy intake 500 to 800 calories per day by eliminating
high-fat foods and controlling portion sizes.


After 12 weeks, study participants in either group could continue on the
weight loss diet or switch to a weight maintenance plan.


At 12 weeks, the low-carb group had lost significantly more weight, and also
more fat -- 1.9 kg (4.2 pounds) of fat vs. 0.9 kg (2 pounds) for the low-fat
diet group.


By 36 weeks, the low-carb group had kept off 4.5 kg (10 pounds), compared to
2.6 kg (5.7 pounds) for the low-fat group, not a huge difference.


Low-carb diet participants had maintained a 2 kg (4.4 pounds) loss of fat
weight, compared to 1.3 kg (2.9 pounds) for the low fat group, which again
was not a significant difference.


The researchers say more research is needed to clarify the mechanisms
responsible for the greater initial losses of body weight and fat associated
with the RGL diet, to evaluate the persistence of these losses over longer
treatment periods, and to obtain greater insight into strategies that would
improve long-term weight-loss maintenance."


SOURCE: American Journal of Clinical Nutrition, March 2007.- Hide quoted text -


- Show quoted text -



Anybody else catch this? In the comments they state:

"However, after the weight-maintenance phase of the study, which
lasted
another 24 weeks, differences between the two groups in weight loss
and fat
mass remained, but were no longer statistically significant. "

Yet, when you read the truth:

"By 36 weeks, the low-carb group had kept off 4.5 kg (10 pounds),
compared to
2.6 kg (5.7 pounds) for the low-fat group, not a huge difference."


So, you have someone writing this, who obviously doesn't understand
the difference between "huge difference" and "statistically
significant. At least I hope it's the moron writer and not the
actual study that's responsible. It's also curious that these
comments are made in light of the fact that it seems both groups at 36
weeks were just about where they were at 12 weeks, when the LC group
was hailed as having lost significantly more weight.

Regarding your comments, J, I have mixed feelings. The good news is
these studies do show that LC works and works better than calorie
restriction, low fat, etc. It also holds out hope that if folks chose
to continue, they could lose more weight over the long term. On the
other hand, it shows the problem of how hard it is to lose weight for
the population at large. The recent study that put a group of women
with an average weight of 190 on a variety of diets was particularly
discouraging. After a year, those on LC were down a measily 10lbs.
and other diets only 3-5 lbs. If they were starting from say 130 or
140, you would say 10lbs was excellent progress. But at 190 you would
have hoped they could have lost a lot more than that. And these are
folks meeting with dieticians, under some supervision, you would think
motivated by being in a study, etc.

Actually, now that I think about it, given what we know about
dieticians, maybe meeting with them is part of the problem? LOL

I think the solution to the obesity problem is going to have to come
from researchers eventually understanding the root genetics, biology,
etc behind it and then developing an effective drug. Clearly, nothing
else is working.







  #9  
Old March 24th, 2007, 02:43 PM posted to alt.support.diet.low-carb
Deke
external usenet poster
 
Posts: 41
Default Another 10 Pounder Study -- Low-carb diet speeds initial weight loss: study


You need to take a course in statistics - really.

That 10 pounds is an average and absolutely huge!!

Many of those people lost over 50 pounds. Did you no know that?







On Fri, 23 Mar 2007 21:46:24 -0500, Jbuch wrote:

I wonder what might be a proper design for a study to show what works
well for major obesity reduction and maintainence of that weight loss.

These little piddly 10 pound average weight reduction studies that have
cropped up in the last few years clearly aren't oriented to solving the
obesity problem.

They may be fine for a little "trim up", but if they continue in the
same vein, it won't make any movement to cracking the "Obesity Problem".
I can imagine that the proposals to get the research dollars bang about
the severity of the "Obesity Epidemic" and then deliver a small 10 pound
bag of average eliminated fat.

10 pounds of fat isn't a cure for obesity.

Can we have "truth in proposal writing" laws written?

Jim


Jake Martin wrote:
Low-carb diet speeds initial weight loss: study
Fri Mar 23, 2:04 PM ET

NEW YORK (Reuters Health) - In a study of overweight and obese people, those
who went on a low carbohydrate diet lost more weight -- and more fat -- than
their peers who went on a low-fat, portion-controlled diet.

After 12 weeks on the low-carb plan, study participants had lost an average
of 4.9 kilograms (10.8 pounds), compared to 2.5 kg (5.5 pounds) for their
peers on the low-fat diet.
However, after the weight-maintenance phase of the study, which lasted
another 24 weeks, differences between the two groups in weight loss and fat
mass remained, but were no longer statistically significant.

The findings confirm that the low-carb diet tested in the study is a
"reasonable alternative" to cutting fat and controlling portions in order to
maintain a healthy weight, Dr. Kevin C. Maki of Radiant Research in Chicago
and colleagues conclude.

The approach Maki's team tested -- a reduced-glycemic-load (RGL) diet --
required people to restrict their carbohydrate intake and eat more low
glycemic index (GI) foods, meaning foods that produce a relatively small,
gradual increase in blood sugar levels. Low GI foods generally are rich in
fiber, consist of more complex carbohydrates, and include vegetables, beans
and whole grains.

Study participants on the RGL diet did not eat certain high-carb foods, such
as fruits and starches, for the first two weeks, and also abstained from
alcohol, after which they introduced low-GI foods and were allowed to drink
moderate amounts of alcohol. But they were allowed to eat as much of the
permitted foods as they wanted. Those on the low-fat diet were instructed to
reduce their energy intake 500 to 800 calories per day by eliminating
high-fat foods and controlling portion sizes.

After 12 weeks, study participants in either group could continue on the
weight loss diet or switch to a weight maintenance plan.

At 12 weeks, the low-carb group had lost significantly more weight, and also
more fat -- 1.9 kg (4.2 pounds) of fat vs. 0.9 kg (2 pounds) for the low-fat
diet group.

By 36 weeks, the low-carb group had kept off 4.5 kg (10 pounds), compared to
2.6 kg (5.7 pounds) for the low-fat group, not a huge difference.

Low-carb diet participants had maintained a 2 kg (4.4 pounds) loss of fat
weight, compared to 1.3 kg (2.9 pounds) for the low fat group, which again
was not a significant difference.

The researchers say more research is needed to clarify the mechanisms
responsible for the greater initial losses of body weight and fat associated
with the RGL diet, to evaluate the persistence of these losses over longer
treatment periods, and to obtain greater insight into strategies that would
improve long-term weight-loss maintenance."

SOURCE: American Journal of Clinical Nutrition, March 2007.




  #10  
Old March 24th, 2007, 04:03 PM posted to alt.support.diet.low-carb
Jbuch
external usenet poster
 
Posts: 429
Default Another 10 Pounder Study -- Low-carb diet speeds initial

Deke wrote:
You need to take a course in statistics - really.

That 10 pounds is an average and absolutely huge!!

Many of those people lost over 50 pounds. Did you no know that?



I did NOT *know* that.

I didn't know because the usual press releases don't elaborate on things
like the range of the data (max/min), or the quartile values or the
standard deviations of the weight loss ranges for the subjects.

I reread the posted data and none of that was included. So.

A few people will lose a lot - which is what is to be expected based on
the usual statistical distributions.

Many people won't lose squat...and some will gain - also based on the
ordinary statistics and what is known of human nature -- not able to
follow directions being a well known ability of people.


Can you back up the statement that the "10 pounds is absolutely huge??"

I would like to see that to better understand the difficulty of
combating general obesity in the population by dieting.

I stand by my position that these kinds of studies aren't giving, yet,
useful information on how to combat obesity in the general population.









On Fri, 23 Mar 2007 21:46:24 -0500, Jbuch wrote:


I wonder what might be a proper design for a study to show what works
well for major obesity reduction and maintainence of that weight loss.

These little piddly 10 pound average weight reduction studies that have
cropped up in the last few years clearly aren't oriented to solving the
obesity problem.

They may be fine for a little "trim up", but if they continue in the
same vein, it won't make any movement to cracking the "Obesity Problem".
I can imagine that the proposals to get the research dollars bang about
the severity of the "Obesity Epidemic" and then deliver a small 10 pound
bag of average eliminated fat.

10 pounds of fat isn't a cure for obesity.

Can we have "truth in proposal writing" laws written?

Jim


Jake Martin wrote:

Low-carb diet speeds initial weight loss: study
Fri Mar 23, 2:04 PM ET

NEW YORK (Reuters Health) - In a study of overweight and obese people, those
who went on a low carbohydrate diet lost more weight -- and more fat -- than
their peers who went on a low-fat, portion-controlled diet.

After 12 weeks on the low-carb plan, study participants had lost an average
of 4.9 kilograms (10.8 pounds), compared to 2.5 kg (5.5 pounds) for their
peers on the low-fat diet.
However, after the weight-maintenance phase of the study, which lasted
another 24 weeks, differences between the two groups in weight loss and fat
mass remained, but were no longer statistically significant.

The findings confirm that the low-carb diet tested in the study is a
"reasonable alternative" to cutting fat and controlling portions in order to
maintain a healthy weight, Dr. Kevin C. Maki of Radiant Research in Chicago
and colleagues conclude.

The approach Maki's team tested -- a reduced-glycemic-load (RGL) diet --
required people to restrict their carbohydrate intake and eat more low
glycemic index (GI) foods, meaning foods that produce a relatively small,
gradual increase in blood sugar levels. Low GI foods generally are rich in
fiber, consist of more complex carbohydrates, and include vegetables, beans
and whole grains.

Study participants on the RGL diet did not eat certain high-carb foods, such
as fruits and starches, for the first two weeks, and also abstained from
alcohol, after which they introduced low-GI foods and were allowed to drink
moderate amounts of alcohol. But they were allowed to eat as much of the
permitted foods as they wanted. Those on the low-fat diet were instructed to
reduce their energy intake 500 to 800 calories per day by eliminating
high-fat foods and controlling portion sizes.

After 12 weeks, study participants in either group could continue on the
weight loss diet or switch to a weight maintenance plan.

At 12 weeks, the low-carb group had lost significantly more weight, and also
more fat -- 1.9 kg (4.2 pounds) of fat vs. 0.9 kg (2 pounds) for the low-fat
diet group.

By 36 weeks, the low-carb group had kept off 4.5 kg (10 pounds), compared to
2.6 kg (5.7 pounds) for the low-fat group, not a huge difference.

Low-carb diet participants had maintained a 2 kg (4.4 pounds) loss of fat
weight, compared to 1.3 kg (2.9 pounds) for the low fat group, which again
was not a significant difference.

The researchers say more research is needed to clarify the mechanisms
responsible for the greater initial losses of body weight and fat associated
with the RGL diet, to evaluate the persistence of these losses over longer
treatment periods, and to obtain greater insight into strategies that would
improve long-term weight-loss maintenance."

SOURCE: American Journal of Clinical Nutrition, March 2007.





 




Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is Off
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Study shows that a high carb vegan diet causes major weight loss Steve General Discussion 0 September 10th, 2005 02:13 AM
Another Very Positive Low Carb Weight Loss Study jbuch Low Carbohydrate Diets 3 November 15th, 2004 12:23 AM
News Article Bashes Hgh-Carb Weight Loss Study Charlotte Low Carbohydrate Diets 4 January 31st, 2004 07:16 PM
Study: Metformin and Carbohydrate-Modified Diet May Help Sustain Weight Loss Roger Zoul Low Carbohydrate Diets 11 January 9th, 2004 03:04 PM
initial weight loss gccch Low Carbohydrate Diets 2 December 5th, 2003 05:36 PM


All times are GMT +1. The time now is 01:59 PM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright ©2004-2024 WeightLossBanter.
The comments are property of their posters.