What is it the most important to restrict?

[Guest guest]

Hi folks:

Purely speculation here ............ taking this argument one step

further ............ if the improved aging response in CR is a

result of a slower rate of cell replication (and therefore a slower

shortening of telomeres and a longer time before the Hayflick limit

is approached/reached) and if we know (at least it is true of

drosophila) that carbohydrate restriction is of comparatively minor

importance, then the big question may be:

" Which is more likely to slow down the rate at which cell replication

proceeds - restriction of fat? or restriction of protein? "

My **GUESS** is that restricting protein may do more to slow down the

cell replication rate than restricting fat.

But I believe cell membranes contain a fair amount of fat, so it

could plausibly be the fat.

Or, logically, perhaps a shortage of EITHER ONE would do the trick,

if the issue is that it is an inadequate supply ('bottleneck' if you

like) of any single resource necessary for cell replication that

slows down the cell replication rate. Indeed it might even be found

that restriction of one single micronutrient that is vital for cell

replication - but not so vital for normal activities - would be

enough to slow the cell replication rate, and thereby delay reaching

the Hayflick limit. In other words, which bottleneck is the most

effective at slowing the cell replication rate while negatively

affecting other biological functions the least?

It will be at least five years before we have data from mammals to

confirm/refute any of this. But **perhaps** the conventional wisdom

with regard to protein intake **may** need to be revised some time

soon. Or perhaps Pritikin's view of the world will be

confirmed as the correct one? Not just from the point of view of

overall health, but as regards extension of maximal lifespan also.

I just can't wait to see the results!

Rodney.

> > Reading an interesting book titled The China Study by Colin

> > PhD. In it he states that " only 5-6% dietary protein is required

to

> > replace the protein regularly excreted by the body (as amino

> acids). "

> > He says all should be from plant sources. He goes on to say " The

> > evidence presented in this book shows that increasing dietary

> protein

> > within the range of about 10-20% is associated with a broad array

of

> > health problems, especially when most of the protein is from

animal

> > sources. "

> >

> > 5-6%! I've never heard of protein recommendations that low! Has

> anyone

> > else?

> >

> > --- In , " edaz19 " <edaz19@y...>

wrote:

> > > Hi

> > >

> > > Im a vegan and recently began CR, i'm having an extremely

> difficult

> > > time reaching my protein requirement (im 5'4 " and 115 right

now I

> > > would like to reach 103) I belive my protein requirement if

40g, I

> > > barely ingest 20g- that's on a good day.

> > >

> > > I honestly do not know what to do- I'm not if I have to

> relenquish my

> > > beliefs to con't this regimine

> > >

> > > ::sigh::

> > >

> > > prior CR i was eating nuts, legumes and grains for protein, but

> now i

> > > have to cut back on my portions and I simply am not getting

enough

> > > protein. i can't spend $3 everyday for tofu.

> > >

> > > i dont know.

> > >

> > > i know lisa walford is a vegan, how does she do it?

> > >

> > > i was thinking about buying some soy protein powder but it is

very

> > > calorie dense and i dont want to rely on special foods.

> > >

> > > i dont know- very disheartened

> > >

> > > any advice would be greatly appreicated.

> > >

> > > edaz19