Re: fat percentage of diet

[Guest guest]

> Where does this 10% figure (of glucose from fats) come from?

Somewhere in GCBC he talks about how the glycerine backbone from breaking up a

triglyceride into the 3 FFAs and glycerine... the glycering can be a source of

glucose. Is that what you are asking?

[Guest guest]

> I never see dieters with a quality tone or muscle. 

> I'm not talking about Arnold Schwarzennegar,

> I'm talking about basic muscle tone.

You've never seen me. I've got em. And I don't do Schwarzennegar " workouts " .

And I have a dietary plan, hence am a dieter I guess.

Connie

[Guest guest]

I haven't gotten a chance to read this book but this looks like a good source. 

It talks about diabetes.

http://books.google.com/books?id=OLa8vDBXDD4C & pg=PA342 & lpg=PA342 & dq=percentage+o\

f+fat+converted+to+glucose+in+gluconeogenesis & source=bl & ots=oPl1iraHF5 & sig=evzq7\

GgS-IN4h3PLABy8qxd6H44 & hl=en & ei=h5uESuSRHIKkswPK6qGgBw & sa=X & oi=book_result & ct=re\

sult & resnum=1#v=onepage & q= & f=false

There's lots and lots of research online showing that during medium to higher

intensity exercises the body shifts from the 85% fat burning to 50% fat burning

and as low as 25% fat burning.  50% of the energy used while the body still is

being used by our brains.  Not sure what source of energy that is, most of it

probably being carbs.

From: lynchwt <lynchwt@...>

Subject: Re: fat percentage of diet

Date: Thursday, August 13, 2009, 10:21 AM

 

Where does this 10% figure (of glucose from fats) come from?

Everything that we always hear about the need for glucose from carbs is

challenged by the evidence Taubes discusses in ch. 22 of _Good Calories, Bad

Calories_. He speaks of research that " finally established the dominant role of

fatty acids in supplying energy for the body, " and demonstrated that when carbs

are absent, fats supply 85% of our energy needs (p. 385). The chapter, if not

the whole book, really merits reading closely, if only to stop repeating the

same old circulating rules of thumb about minimum levels of carbs, muscle

wasting, and so forth.

I'm not sure there is an ideal limit on carbs or that I would advocate the super

low-carb diets for most people. But I also don't think athletes need to be

constantly dosing themselves with carbs to make it through a workout. My point

about the milk before a workout was not that I was looking for a pick-me-ip and

milk failed, but that I didn't need one even through four hours of basketball.

Different people in different sports may vary--bodybuilding is an extreme

activity in some ways, so it may have its own needs, but I would still ask for

some evidence even here.

I remain suspicious of the need to constantly tweak our insulin. I believe

traditionally people worked long hours without food and feasted robustly. I

would think avoiding all carbs is less the norm than not eating them throughout

the day, thereby locking up the ready availability of energy in adipose tissue

by constantly elevating insulin. Even pre-agricultural peoples collected wild

cereals which may have been one factor eventually leading to domestication (see

Mithen, _Before the Ice_). I'm just really suspicious of the whole common

knowledge about workout snacks and the like, most of which--if based on evidence

at all--probably presumes a background of carb snacking as the norm.

Bill

--- In , Holt <danthemanholt@ ...>

wrote:

>

> Yeah, and if you read my other posts I was also talking about how it's

difficult to use protein as a source of fuel other than muscular repair.  It may

also do some damage.  Only 10% of fat you consume can convert to carbohydrate. 

You would need to consume enough fat to where 10% of it will convert to carbs,

or the body will eat from your muscle stores.

>

> I never see dieters with a quality tone or muscle.  I'm not talking about

Arnold Schwarzennegar, I'm talking about basic muscle tone.

>

[Guest guest]

I read another saying only 5% of fat can be converted to glycerol.  That may be

in a higher carb diet though.

Here's some research on protein intake.

http://books.google.com/books?id=PCU0RwDI6c4C & pg=PA166 & lpg=PA166 & dq=high+protein\

+intake+harmful+for+health+scholarly & source=bl & ots=sxYFYiI7Zf & sig=qckGykO0MAs4z5\

HWs3SjIqHxw8Q & hl=en & ei=uKKESvnXKoTUsQPv-ISsBw & sa=X & oi=book_result & ct=result & resn\

um=2#v=onepage & q= & f=false

>

> From: cbrown2008 <cbrown2008 (DOT) com>

> Subject: Re: fat percentage of diet

>

> Date: Wednesday, August 12, 2009, 7:37 PM

>

>

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