Resveratol is in grape juice, but I'm not sure it's what interferes
with iron absorption. The thing I read was basically talking about
iron-deficiency ... some foods, taken with a meal high in iron,
prevent absorption. Grape juice, prune juice, cayenne, and whole
grains fall into that category.
Other foods actively chelate iron: VIt C, turmeric. Grape juice
has Vit C, but it also has whatever it has that prevents absorption.
So it gets complicated.
The beef thing just floors me though. Beef is associated with
raising blood ferritin levels. Fish are not. But there IS iron in
fish (and most other animal foods), and it's the kind of iron that
should be absorbed. So what is it about beef? It doesn't appear
to be race-dependent ... Northern Europeans are definitely
different (I was reading Jared Diamond today, and if I interpret
him correctly, Europeans branched off from the rest of humanity
some one million years ago ????) ... but other people who eat
beef also get higher ferritin levels. Which for most nations is
a *good* thing.
Mind you I eat local too, and we get our one grass-fed cow
a year, and I'm picking up this year's beef in a couple of days.
So I'm really looking for a different answer. (we do have local
fish though: the humpys are running!).
On Mon, Aug 31, 2009 at 2:14 PM, Ellen Ussery<ellen.ussery@
> Hmmm. I am finding some reduction of my blood sugar with resveratrol.
> Isn't that the stuff from grape juice?
>
> I have Northern European genes on both sides. I have for a long time
> had this sense that fish would probably be the best thing for me to
> eat most of the time I try to eat it often , but ya know, here we
> are with our little "modernhomestead"
> fish just isn't that local! But, as I said we have lots of our own
> poultry these days and it needs to be eaten. So I will see if it
> makes any difference
>
> The other way that turmeric could work is that if it does reduce
> iron, which then reduces Diabetes. and also the high undiagnosed post
> prandial blood sugar, you will then have both less vascular
> dementia and less AGEs which can be a cause of plaque formation in the
> brain of Alzheimers patients.
>
> Ellen
>
> On 8/31/09, Heather Twist <HeatherTwist@
>> I'm not planning on adding grains either, at least not the
>> wheat variety. My diet now is mainly meats and vegies
>> and fruit. But I have cut down on "beef" as an experiment.
>> I mean, we have chicken and goose and duck and lots of types
>> of fish, and pork and lamb. I feel the best when I eat the most
>> fish.
>>
>> Turmeric pulls iron out of the system: it's a "moderate chelator".
>> This is mainly interesting in terms of India: the thought has been
>> that the turmeric somehow prevents Alzheimer's, and now they
>> are thinking that maybe the way this happens is that turmeric
>> leeches iron out of the system.
>>
>> I don't really think this has been a problem for most of history.
>> For most of history humans had gut parasites, and people with
>> parasites are usually iron deficient. Also, there is a very good
>> iron-regulating system inside people. The gut cells absorb iron
>> and only release it to the blood as needed: the gut cells then
>> slough off (they only live 3 days or so) and take the iron with
>> them.
>>
>> However, a goodly chunk of the Northern European population
>> has genes that prevent this. I'm not sure about other populations.
>> But if you lack the "iron protection" service, then it's easy to
>> overdose. On the other hand, if you DO have the iron protection
>> genes, then it's unlikely you have too much iron. So it's not
>> really something that one can guess at. It's very genetic.
>>
>> Also what isn't known is what blood ferritin levels SHOULD be.
>> What is clear is that people in the higher ferritin level categories
>> are more prone to heart disease and T2 diabetes. But there
>> really needs to be more research on it.
>>
>> For myself though, I'm pretty sure that this is an issue in my
>> family. I'll be getting the tests I think, including the genetic
>> tests, then I won't be guessing. The thing is though, that
>> when I eat beef, take turmeric, or VIt C, I start getting heart
>> arrhythmia, which is often caused by high iron levels. My
>> working guess is that those three things all change
>> iron levels ... otherwise I can't see a connection between
>> those items!
>>
>> BTW dark grape juice (and dark wine) also inhibits iron
>> absorption. Which makes me wonder if this isn't part of
>> the French diet issue: they drink wine always with
>> meals, which by my theory would lower their levels
>> of T2 diabetes and heart disease.
>>
>
>
> ------------
>
> Yahoo! Groups Links
>
>
>
>
--
Heather Twist
http://eatingoffthe
Change settings via the Web (Yahoo! ID required)
Change settings via email: Switch delivery to Daily Digest | Switch format to Traditional
Visit Your Group | Yahoo! Groups Terms of Use | Unsubscribe
No comments:
Post a Comment