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Home > Archive > Pathology > June 2006 > Absorption of non-haem iron can vary from 1 to 100 per cent
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Absorption of non-haem iron can vary from 1 to 100 per cent
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| ironjustice@aol.com 2006-06-12, 4:27 pm |
| http://tinyurl.com/jhf92
Results and findings
There are two forms of iron in our diets: haem iron which is derived
from meat and non-haem iron which is derived from other food sources.
Absorption of non-haem iron, which makes up the majority of the iron in
our diets, can vary from 1 to 100 per cent and is affected by the
presence of other food components consumed at the same time.
Who loves ya.
Tom
Jesus Was A Vegetarian!
http://jesuswasavegetarian.7h.com
Man Is A Herbivore!
http://tinyurl.com/a3cc3
DEAD PEOPLE WALKING
http://tinyurl.com/zk9fk
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| PeterB 2006-06-12, 4:27 pm |
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ironjustice@aol.com wrote:
> http://tinyurl.com/jhf92
>
> Results and findings
> There are two forms of iron in our diets: haem iron which is derived
> from meat and non-haem iron which is derived from other food sources.
> Absorption of non-haem iron, which makes up the majority of the iron in
> our diets, can vary from 1 to 100 per cent and is affected by the
> presence of other food components consumed at the same time.
This paper, while interesting, doesn't say very much. In fact, I find
it a tad misleading. Though non-haem iron might be absorbed up to
100%, serum iron tests cannot measure cellular iron levels, and iron
deficiency (much less frank aneamia) can exist with or without high
serum iron levels. This should have been commented on by the study
authors. The paper also does not address the different ratios of serum
iron absorption relative to a variety of test meals, however it does
surrender to the validity of standard testing methods, so I presume the
standard assessment of 5% absorption for non-haem iron remains
unchallenged. And yet, I do challenge it, for the following reason.
Standard tests are unlikely to have been applied to well-informed
vegetarians, consequently such individuals who consume thoughtfully
constructed meals are likely to at least double that result, improving
their iron status.
> Who loves ya.
> Tom
>
>
> Jesus Was A Vegetarian!
> http://jesuswasavegetarian.7h.com
>
>
> Man Is A Herbivore!
> http://tinyurl.com/a3cc3
>
>
> DEAD PEOPLE WALKING
> http://tinyurl.com/zk9fk
| |
| babawali@world.com 2006-06-12, 4:27 pm |
| "Results and findings
There are two forms of iron in our diets: haem iron which is derived
from meat and non-haem iron which is derived from other food sources.
Absorption of non-haem iron, which makes up the majority of the iron in
our diets, can vary from 1 to 100 per cent and is affected by the
presence of other food components consumed at the same time."
What is the point, this is standard info for anyone who has read even a
minimal about the topic.
Veggie based iron varies as to absorption, please tell us the same for
what you know about meat based iron and what factors are involved in the
variation of it.
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| ironjustice@aol.com 2006-06-13, 2:28 am |
|
PeterB wrote:
> iron
> deficiency (much less frank aneamia) can exist
It doesn't exist ..
Utilized iron / unutilized iron .. exists ..
Iron 'deficiency' .. doesn't.
> so I presume the
> standard assessment of 5% absorption for non-haem iron remains
> unchallenged.
As a general .. rate .. 'just' to keep the .. iron stores / pool /
seven months worth .. 'topped up'.
Vitamin C enables iron to absorbed IF need BE .. but in the case of
iron from meat the vitamin C upregulates its' absorption even when it
is not needed.
Sooo .. even though we are not trying to absorb the highly absorbable
meat iron the orange juice causes it to be absorbed even MORE ..
>And yet, I do challenge it, for the following reason.
> Standard tests are unlikely to have been applied to well-informed
> vegetarians, consequently such individuals who consume thoughtfully
> constructed meals are likely to at least double that result, improving
> their iron status.
If need .. be ..
Such as the day before you sliced open your hand .. you would absorb
more the next day .. and such the same with women and their bleeding ..
they upregulate to absorb more to keep the iron stores / pool / seven
months worth of iron .. 'topped up'.
Any apparent 'anemia' is NOT .. iron deficiency .
Who loves ya.
Tom
Jesus Was A Vegetarian!
http://jesuswasavegetarian.7h.com
Man Is A Herbivore!
http://tinyurl.com/a3cc3
DEAD PEOPLE WALKING
http://tinyurl.com/zk9fk
| |
| PeterB 2006-06-13, 4:25 pm |
|
ironjustice@aol.com wrote:
> PeterB wrote:
>
> It doesn't exist ..
Of course it does. You can be deficient in *any* nutrient the body
can't make on its own.
http://www.ironpanel.org.au/AIS/AIS...cs/Acommon.html
http://www.babycenter.com/refcap/ba...rash/10860.html
> Utilized iron / unutilized iron .. exists ..
It's true that a nutritious diet contains sufficient iron, and that
under-utilized iron can't be corrected simply by adding more iron.
That doesn't mean everyone's diet is adequate, however. Combined with
the fact that we each process the iron we ingest differently (as is
true for all nutrients), we need to recognize how our individual
biochemistry determines our need for iron, calcium, zinc, or any other
mineral. Some people experience iron overload without eating any
amount of meat, while others may not experience iron overload eating
meat on a daily basis. Genetics are a factor in all disease, whether
environmentally triggered or not. Diet is just another variable.
>
> Iron 'deficiency' .. doesn't.
>
> As a general .. rate .. 'just' to keep the .. iron stores / pool /
> seven months worth .. 'topped up'.
>
> Vitamin C enables iron to absorbed IF need BE .. but in the case of
> iron from meat the vitamin C upregulates its' absorption even when it
> is not needed.
>
> Sooo .. even though we are not trying to absorb the highly absorbable
> meat iron the orange juice causes it to be absorbed even MORE ..
The relationship in time for consumption of those foods will also be a
factor.
>
> If need .. be ..
>
> Such as the day before you sliced open your hand .. you would absorb
> more the next day .. and such the same with women and their bleeding ..
> they upregulate to absorb more to keep the iron stores / pool / seven
> months worth of iron .. 'topped up'.
>
> Any apparent 'anemia' is NOT .. iron deficiency .
It may not be, it will depend on cellular levels. Serum blood tests
are just part of the story.
http://www.ironpanel.org.au/AIS/AISdocs/labq1ab.htm
> Who loves ya.
> Tom
>
>
> Jesus Was A Vegetarian!
> http://jesuswasavegetarian.7h.com
>
>
> Man Is A Herbivore!
> http://tinyurl.com/a3cc3
>
>
> DEAD PEOPLE WALKING
> http://tinyurl.com/zk9fk
| |
| ironjustice@aol.com 2006-06-13, 4:25 pm |
|
PeterB wrote:
> ironjustice@aol.com wrote:
>
> Of course it does. You can be deficient in *any* nutrient the body
> can't make on its own.
> http://www.ironpanel.org.au/AIS/AIS...cs/Acommon.html
> http://www.babycenter.com/refcap/ba...rash/10860.html
Iron is .. different .. it is controlled at .. *absorption* .. UNLIKE
... other .. nutrients ..
>
[vbcol=seagreen]
> That doesn't mean everyone's diet is adequate, however.
If a person is alive that means they have eaten enough food to keep the
iron STORES / pool / seven months worth of iron 'topped up'.
They do NOT .. 'lose iron' .. they are BORN with sufficient iron and
will DIE with sufficient iron.
They do not 'use it up' .. it is recycled .. treated as if it were gold
... it is not even used up in the growth process.
> Combined with
> the fact that we each process the iron we ingest differently (as is
> true for all nutrients),
???
Where are you getting your information .. ?
Iron is absorbed the SAME in everybody ..
Meat iron is absorbed at a high rate .. at all times of iron status ..
meaning it does not vary in absorption rates between different races or
... people.
> Some people experience iron overload without eating any
> amount of meat,
Genetically predisposed .. as in thalassemia or hemochromatosis ..
*genetic* hemochromatosis ..
> while others may not experience iron overload eating
> meat on a daily basis.
Yes they do .. just no .. symptoms ..
[vbcol=seagreen]
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| Sdores 2006-06-13, 4:25 pm |
| Iron can be lost by bleeding and pregnancy. Just thought this should be
added. UM MOM Susan
<ironjustice@aol.com> wrote in message
news:1150209560.543405.40880@f6g2000cwb.googlegroups.com...
>
> PeterB wrote:
>
> Iron is .. different .. it is controlled at .. *absorption* .. UNLIKE
> .. other .. nutrients ..
>
>
>
> If a person is alive that means they have eaten enough food to keep the
> iron STORES / pool / seven months worth of iron 'topped up'.
>
> They do NOT .. 'lose iron' .. they are BORN with sufficient iron and
> will DIE with sufficient iron.
>
> They do not 'use it up' .. it is recycled .. treated as if it were gold
> .. it is not even used up in the growth process.
>
>
>
> ???
>
> Where are you getting your information .. ?
>
> Iron is absorbed the SAME in everybody ..
>
> Meat iron is absorbed at a high rate .. at all times of iron status ..
> meaning it does not vary in absorption rates between different races or
> .. people.
>
>
>
>
> Genetically predisposed .. as in thalassemia or hemochromatosis ..
> *genetic* hemochromatosis ..
>
>
> Yes they do .. just no .. symptoms ..
>
>
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| PeterB 2006-06-13, 4:25 pm |
|
ironjustice@aol.com wrote:
> PeterB wrote:
>
> Iron is .. different .. it is controlled at .. *absorption* .. UNLIKE
> .. other .. nutrients ..
All minerals are transported, and stored, with variable efficiency
after absorption. All minerals are utilized and contribute to cell
load values. Each is also subject to mineral and vitamin synergists
and antagonists. In the case of iron, the minerals calcium, magnesium,
and zinc are all antagonists, meaning they have the ability to reduce
iron stores (even indirectly by sacrificing serum iron) over time. If
a person takes 100mg of zinc daily, and consumes limited amounts of
vitamin C, for instance, they raise the risk of developing iron
deficiency over time. A varied (quality) diet is therefore protective.
>
>
> If a person is alive that means they have eaten enough food to keep the
> iron STORES / pool / seven months worth of iron 'topped up'.
It might, or might not. Being alive isn't a diagnostic for nutritional
status.
> They do NOT .. 'lose iron' .. they are BORN with sufficient iron and
> will DIE with sufficient iron.
That's based on your belief that iron is inexhaustible in the human
body. It can't be true because iron is utilized on a daily basis, just
like any other nutrient.
> They do not 'use it up' .. it is recycled .. treated as if it were gold
> .. it is not even used up in the growth process.
Iron leaves the body, it just does it slowly.
>
> ???
>
> Where are you getting your information .. ?
Biochemistry is not a static thing. Everyone needs vitamin C, for
instance, but some people need more. Some people need less iron, some
may need more.
> Iron is absorbed the SAME in everybody ..
The mechanisms are the same, that doesn't mean rates of absorption are
the same. Percentages will vary from person to person.
> Meat iron is absorbed at a high rate .. at all times of iron status ..
> meaning it does not vary in absorption rates between different races or
> .. people.
All haem iron is better absorbed than non-haem, that doesn't mean
everyone absorbs it at the same rate.
>
> Genetically predisposed .. as in thalassemia or hemochromatosis ..
> *genetic* hemochromatosis ..
It doesn't have to meet diagnostic parameters to qualify as genetically
influenced, however. Your genes don't know they are different from
anyone elses.
>
> Yes they do .. just no .. symptoms ..
Oh, Tom.
[vbcol=seagreen]
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| ironjustice@aol.com 2006-06-14, 2:28 am |
|
PeterB wrote:
>
> Iron leaves the body, it just does it slowly.
Which results in an .. repeat after me .. iron .. overload .. because
... ? the iron from meat is NOT .. controlled in its' .. *absorption*
and SURPASSES the .. *loss* of iron and *builds* / "tends to
accumulate" .. in a .. closed system .. our body ..
Closed system defined as .. once it gets IN .. it doesn't get .. out ..
We have noway to excrete iron once it gets past the gut ..
The *stores* remain the same .. NEVER .. depleted ..
To any extent ..
[vbcol=seagreen]
>
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| PeterB 2006-06-14, 8:24 am |
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ironjustice@aol.com wrote:
> PeterB wrote:
>
> Which results in an .. repeat after me .. iron .. overload .. because
> .. ? the iron from meat is NOT .. controlled in its' .. *absorption*
> and SURPASSES the .. *loss* of iron and *builds* / "tends to
> accumulate" .. in a .. closed system .. our body ..
>
> Closed system defined as .. once it gets IN .. it doesn't get .. out ..
It comes out in the form of fingernail and hair growth, about 1mg a
day. Besides, if it were truly a "closed system," you couldn't consume
*any* iron, even in plant foods. I'll let that be my closing comment.
Be well...
> We have noway to excrete iron once it gets past the gut ..
> The *stores* remain the same .. NEVER .. depleted ..
> To any extent ..
That's a
[vbcol=seagreen]
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| Manky Badger 2006-06-14, 4:26 pm |
|
<ironjustice@aol.com> wrote in message
news:1150261578.125830.258330@y43g2000cwc.googlegroups.com...
>
> PeterB wrote:
>
> Which results in an .. repeat after me .. iron .. overload .. because
> .. ? the iron from meat is NOT .. controlled in its' .. *absorption*
> and SURPASSES the .. *loss* of iron and *builds* / "tends to
> accumulate" .. in a .. closed system .. our body ..
>
> Closed system defined as .. once it gets IN .. it doesn't get .. out ..
>
> We have noway to excrete iron once it gets past the gut ..
Tell my wife that every month !
You need to get out more, Tom !
--
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