Re: Whey isolate and IGF-1

[Guest guest]

Oral absorption of growth factors has been well documented and

> they have been shown to help improve wound healing as well as various

> afflictions of the gastrointestinal tract. They are also thought to

> exhert an anabolic effect if whey consumption is high enough. "

Now look at this: growth factors in whey concentrate help improve

wound healing. Now, relate this to the trophoblastic theory of cancer,

where it is believed that injured tissue is the cause of cancer due to

trophoblastic cells repairing the injury, but then turning into cancer

because the pancreas does not destroy them.

In addition, note the " anabolic effect " if whey consumption is high.

This too would not be very good for cancer.

So -- it appears that whey isolate is good while whey concentrate is

bad. It also appears that the intake of whey should be moderate, and

not excessive. An earlier study I read about said that " moderate "

intake of whey helped breast cancer, but the reason for moderation was

not explained.

[Guest guest]

Ah ha? If WPC is 800 times worse does that make WPI good?

How much is bad? o.oosomething? Don't we all avoid drinking water

from plastic bottles because it contains o.oosomething estrogen?

>

> Well, here's one website that seems to indicate that whey isolate

> does not contain much IGF-1. I mentioned this earlier, but here is

> the info itself:

>

> http://www.articlesbase.com/nutrition-articles/whey-proteins-which-

is-

> better-isolate-or-concentrate-561657.html

[Guest guest]

Moderation is the key. Supplement whey, any type, to keep within normal

protein intake range. Don't " shoot for the sky " like a lot of

misinformed body builders do. Any anabolic effects, within normal

ranges of consumption, do not pose a threat to cancer patients. Normal

ranges confer many benefits.

Normal range is an individual thing. You need to consider activity

levels, size, stress levels, whether there is cachexia presen, etc.

Mike

jrrjim wrote:

>

> Well, here's one website that seems to indicate that whey isolate

> does not contain much IGF-1. I mentioned this earlier, but here is

> the info itself:

>

> http://www.articlesbase.com/nutrition-articles/whey-proteins-which-is-

> <http://www.articlesbase.com/nutrition-articles/whey-proteins-which-is->

> better-isolate-or-concentrate-561657.html

>

> " The two most common whey protein supplements are whey protein

> concentrate (WPC) and whey protein isolate (WPI). WPC is produced by

> a process known as ultrafiltration, a low temperature process that

> uses pressure and a porous membrane to separate the fat and lactose

> from untreated sweet whey. This produces a product with approximately

> 78-83% protein, 6-8 % fat and 4-6% lactose. To produce WPI, WPC is

> further processed using either cross-flow microfiltration (CFM) or

> microflitration (MF), both of which further separate whey protein

> from fat and lactose using high-tech ceramic filters. This produces a

> WPI comprised of approximately 90% protein, <1% fat and <1% lactose.

> A third process known as Ion-Exchange can also be used to produce

> WPI, but this method is now considered obsolete due to the effects of

> the harsh treatments involved, denaturing the native protein

> fractions.

>

> Whilst WPI is marketed as a superior product to WPC, in most respects

> it is actually inferior due to its significantly lower levels (WPC

> contains up to 800% more) of a group of bioactive compounds known

> as 'growth factors' (IGF-1, IGF-2, TGF-B, PDGF and FGF). These growth

> factors are contained within the fat globule membrane of whey, but

> the further filtration required to produce WPI, also removes these

> beneficial fat globules in order achieve a fat content of less than

> 1%. Oral absorption of growth factors has been well documented and

> they have been shown to help improve wound healing as well as various

> afflictions of the gastrointestinal tract. They are also thought to

> exhert an anabolic effect if whey consumption is high enough. "

>

> AH HA!!!! So -- here we see that if IGF-1 is a big issue with cancer,

> then whey concentrate should be avoided while whey isolate apparently

> does not pose any problem.

>

>