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Glucose for the brain ?



 
 
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  #1  
Old March 26th, 2004, 03:18 AM
Warp100
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Default Glucose for the brain ?

Can anyone shed some light on this ?
Quote from local Paper
Len Piche,Nutrition professor, is an expert on Canada's food Guide and food
labeling say's " The latest recommendation for adults and children in
Canada is to consume a minimum of 130 grams of carbs a day, an amount based
on the average minimum amount of glucose utilized by the brain . Some low
carb diets recommend much lower amounts then this."
end quote

Peter
300/264/250ish
Jan 12 2004



  #2  
Old March 26th, 2004, 03:23 AM
Roger Zoul
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Default Glucose for the brain ?

Warp100 wrote:
:: Can anyone shed some light on this ?
:: Quote from local Paper
:: Len Piche,Nutrition professor, is an expert on Canada's food Guide
:: and food labeling say's " The latest recommendation for adults and
:: children in Canada is to consume a minimum of 130 grams of carbs a
:: day, an amount based on the average minimum amount of glucose
:: utilized by the brain . Some low carb diets recommend much lower
:: amounts then this." end quote

Some expert....the body can make glucose for use by the brain from
protein...and the brain can function on ketones. No biggie.

::
:: Peter
:: 300/264/250ish
:: Jan 12 2004


  #3  
Old March 26th, 2004, 03:25 AM
Laurence
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Default Glucose for the brain ?

Sure! take a short fast course in medical biochemistry at the following
website. It is an excellent authoritative resource.

http://www.indstate.edu/thcme/mwking/home.html



"Warp100" wrote in message
le.rogers.com...
Can anyone shed some light on this ?
Quote from local Paper
Len Piche,Nutrition professor, is an expert on Canada's food Guide and

food
labeling say's " The latest recommendation for adults and children in
Canada is to consume a minimum of 130 grams of carbs a day, an amount

based
on the average minimum amount of glucose utilized by the brain . Some low
carb diets recommend much lower amounts then this."
end quote

Peter
300/264/250ish
Jan 12 2004





  #4  
Old March 26th, 2004, 03:46 AM
Warp100
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Default Glucose for the brain ?

Perfect ...thanks alot Roger

I love this place

Peter


"Roger Zoul" wrote in message
...
Warp100 wrote:
:: Can anyone shed some light on this ?
:: Quote from local Paper
:: Len Piche,Nutrition professor, is an expert on Canada's food Guide
:: and food labeling say's " The latest recommendation for adults and
:: children in Canada is to consume a minimum of 130 grams of carbs a
:: day, an amount based on the average minimum amount of glucose
:: utilized by the brain . Some low carb diets recommend much lower
:: amounts then this." end quote

Some expert....the body can make glucose for use by the brain from
protein...and the brain can function on ketones. No biggie.

::
:: Peter
:: 300/264/250ish
:: Jan 12 2004




  #5  
Old March 26th, 2004, 02:00 PM
Terri
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Default Glucose for the brain ?

Roger Zoul wrote:

Warp100 wrote:
:: Can anyone shed some light on this ?
:: Quote from local Paper
:: Len Piche,Nutrition professor, is an expert on Canada's food Guide
:: and food labeling say's " The latest recommendation for adults and
:: children in Canada is to consume a minimum of 130 grams of carbs a
:: day, an amount based on the average minimum amount of glucose
:: utilized by the brain . Some low carb diets recommend much lower
:: amounts then this." end quote

Some expert....the body can make glucose for use by the brain from
protein.


Only 58% of it meaning to get 130 gms of carbs you'd have to eat a bone
rotting 223 gms of protein. Even if you ate 40 gms of carbs you'd need
to eat 170 or so gms of protein to make up the deficit.

..and the brain can function on ketones.

Sure but it's second best. Given the half life of glucose in the human
body it would have been suicidal for humans not to develop a secondary
fuel to keep the brain functioning during even very short periods (hours
in fact) of food deprivation. That doesn't mean the second best brain
fuel is preferable though, especially over the long term
No biggie.

::
:: Peter
:: 300/264/250ish
:: Jan 12 2004


  #6  
Old March 26th, 2004, 02:25 PM
DJ Delorie
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Default Glucose for the brain ?


Terri writes:
Only 58% of it meaning to get 130 gms of carbs you'd have to eat a
bone rotting 223 gms of protein.


Your body carries around a huge store of protein too. Between the
brain's reduced dependency on carbs after adapatation to ketosis, the
carbs that you ingest, the protein you ingest being converted to
carbs, and the breakdown of body protein (you're losing weight anyway),
the body has no problem getting what it needs.

There are some individuals who don't adapt to ketosis very well, they
do have some problems and usually just eat more carbs to make up the
difference.
  #7  
Old March 26th, 2004, 02:38 PM
LCer09
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Default Glucose for the brain ?

.and the brain can function on ketones.

Sure but it's second best.


Why is that? My body has been relying on ketones for fuel, and I've never felt
sharper and more alert. Carb fuel makes me feel sluggish and fuzzy, my body AND
brain.

LCing since 12/01/03-
Me- 5'7" 265/219/140
& hubby- 6' 310/235/180
  #8  
Old March 26th, 2004, 02:53 PM
Terri
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Posts: n/a
Default Glucose for the brain ?

LCer09 wrote:

.and the brain can function on ketones.

Sure but it's second best.



Why is that? My body has been relying on ketones for fuel, and I've never felt
sharper and more alert. Carb fuel makes me feel sluggish and fuzzy, my body AND
brain.

LCing since 12/01/03-
Me- 5'7" 265/219/140
& hubby- 6' 310/235/180


huh? You think the brain is designed to use second best fuel on a
regular basis and use the best fuel only when the second best isn't
available? Interesting belief....but the logic escapes me.
  #9  
Old March 26th, 2004, 03:25 PM
Mirek Fidler
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Default Glucose for the brain ?

.and the brain can function on ketones.

Sure but it's second best. Given the half life of glucose in the human


Well, that is a question. AFAIK brain would preffer ethanol before
glucose as fule. Does it mean that glucose is second best fuel to
ethanol ?

Mirek


  #10  
Old March 26th, 2004, 03:26 PM
Roger Zoul
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Default Glucose for the brain ?

Terri wrote:
:: Roger Zoul wrote:
::
::: Warp100 wrote:
::::: Can anyone shed some light on this ?
::::: Quote from local Paper
::::: Len Piche,Nutrition professor, is an expert on Canada's food Guide
::::: and food labeling say's " The latest recommendation for adults
::::: and children in Canada is to consume a minimum of 130 grams of
::::: carbs a day, an amount based on the average minimum amount of
::::: glucose utilized by the brain . Some low carb diets recommend
::::: much lower amounts then this." end quote
:::
::: Some expert....the body can make glucose for use by the brain from
::: protein.
::
:: Only 58% of it meaning to get 130 gms of carbs you'd have to eat a
:: bone rotting 223 gms of protein. Even if you ate 40 gms of carbs
:: you'd need to eat 170 or so gms of protein to make up the deficit.
::
:: .and the brain can function on ketones.
::
:: Sure but it's second best.

Prove that.....the brain can use ketones, period.

Given the half life of glucose in the
:: human body it would have been suicidal for humans not to develop a
:: secondary fuel to keep the brain functioning during even very short
:: periods (hours in fact) of food deprivation. That doesn't mean the
:: second best brain fuel is preferable though, especially over the
:: long term No biggie.

The body adapts to what is available. So prove that glucose from carbs is
better than glucose from protein and/or the use of ketone bodies. Or provide
some credible sites that offer this proof.

This notion of the 'preferred fuel source' is specious, at best. It's one
thing if an organ can function using only one fuel source, but when an organ
has multiple means to get energized, there's a reason for that.



 




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