Medical Forum / Diseases and Disorders / Diabetes / October 2005
Getting Paleolithic levels of Vit C in a modern diet
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Quentin Grady - 22 Oct 2005 01:47 GMT G'day G'day Folks,
We have had Spring rains here making it a good day to crunch a few numbers and see if we can get Paleolithic levels of Vit C on a modern T2 friendly diet.
Basic assumptions. The Paleolithic diet provided 600 mg of Vit C in a 3000 kcal/day diet. A 2000 kcal/day diet is probably more appropriate for many of us.
The Paleolithic diet was thought to comprise 35% animal products and 65% vegetable products by weight. As a rough approximation I'll aim at getting half the daily calories from vegetables and fruit.
This gives me a calorie limit of 1000 kcal. My Vit C target is 400 to 600 mg.
Sweet peppers, 1 large 312 mg 44 kcal Broccoli, 1 cup cooked 101 mg 55 kcal Strawberries 1 cup, whole 94 mg 46 kcal Snow peas 1 cup,boiled 76 mg 67 kcal Brussel sprouts 1 cup 70 mg 56 kcal Asparagus 1 cup 43 mg 40 kcal
Totals 696 mg 308 kcal
Comment:- A bit of over run is cool since most items are seasonal. This is a typical Spring/Summer selection.
There is still 700 kcal unspent to allow for having to substitute vegetables with lower Vit C content.
A Winter Paleolithic menu would be harder.
Surprising to many people, sweet peppers and broccoli out perform most fruit. While fruit is often advocated by nutritionists for T2 diabetics it is wise to remember sweet peppers are fruit and IMHO make a more sensible choice for many people.
One kiwi fruit 96 mg 61 kcal Tangerine, manderin orange, medium 26 mg 45 kcal
BTW. The RDA, is currently about 60 to 80 mg. Someone can no doubt find an official figure.
Best wishes,
 Signature Quentin Grady ^ ^ / New Zealand, >#,#< [ / \ /\ "... and the blind dog was leading."
http://homepages.paradise.net.nz/quentin
Quentin Grady - 22 Oct 2005 05:36 GMT G'day G'day Folks,
Since this is a diabetic support group I have extended the chart to include two other items of interest, available carb and magnesium.
Available VitC Energy Carb Magnesium (mg) (kcal) (grams) (mg) Sweet peppers, 1 large 312 44 7 20 Broccoli, 1 cup cooked 101 55 6 33 Strawberries 1 cup, whole 94 46 8 19 Snow peas 1 cup,boiled 76 67 7 42 Brussel sprouts 1 cup 70 56 7 31 Asparagus 1 cup 43 40 4 26
Totals 696 308 39 171 Average 116 51 7 29
Comment.
Vit C content varies so much the average is meaningless. The other averages have less variation.
As a rough rule for these T2 friendly vegetables. Energy = 50 kcal carb = 7 grams and magnesium = 30 mg
Note. The glycemic load for vegetables is often quoted as half the grams of available carb. Available carb is simply total carb less fibre.
Even followers of ultra low carb sticking to 30 grams of carb per day can easily reach 400 mg of Vit C per day. Its not the path I choose to follow but the data shows it is easy to do if you like sweet peppers and broccoli.
Chalk up another big plus for sweet peppers. I took my figures for red sweet peppers since orange peppers are not listed. The big plus for orange peppers is that the orange is zeaxanthin that protects the most sensitive regions of the eyes from ultraviolet, violet and blue light damage.
Someone might want to hack out a more complete list for "free" vegetables.
Best wishes,
 Signature Quentin Grady ^ ^ / New Zealand, >#,#< [ / \ /\ "... and the blind dog was leading."
http://homepages.paradise.net.nz/quentin
Chris J. - 24 Oct 2005 04:50 GMT >G'day G'day Folks, Greetings, Quentin.
Thank you for your excellent post. I have long been a fan of peppers of all kinds, and eat them daily. What I had not known about was how high Broccoli is in C. I'd been considering a supplement due to my post-Dx drastic reduction in fruit intake, but I now see I don't need it. Thanks!
Quentin Grady - 24 Oct 2005 05:24 GMT This post not CC'd by email On Sun, 23 Oct 2005 20:50:31 -0700, Chris J. <chris@noadress.com> wrote:
>>G'day G'day Folks, > [quoted text clipped - 6 lines] >it. >Thanks! G'day G'day Chris,
Glad you liked it. It can be a bit of chore preparing the tables.
Vit C is something I haven't looked at much in the past. Vit C is a water soluble antioxidant, whilst Vit E is fat soluble. To form an antioxidant network where Vit C can recycle Vit E intermediaries are required. The most obvious are the polyphenols. Put simply, less antioxidants vitamins are required when the polyphenols are present since recycling occurs so I wasn't concerned about getting enough.
What people don't often realise is that vitamin supplements typically provide the antioxidant vitamins abeit in the wrong stereoisomers forms but omit the polyphenols to get the whole thing working coherently.
As far as I can see there are three major reasons why food is a better source than supplements.
A. The vitamins are the correct stereoisomers.
B. Food comes with intermediaries that allow the vitamins to function properly together.
C. The unexpected risks associated with excessive doses appear diminished. This may be because food sources are less prone to suppressing the functioning of closely related compounds. For example a food that contains alpha and beta carotene is unlikely to the suppress the action of alpha carotene whereas a supplement containing beta carotene without alpha carotene is more likely to do so.
Best wishes,
 Signature Quentin Grady ^ ^ / New Zealand, >#,#< [ / \ /\ "... and the blind dog was leading."
http://homepages.paradise.net.nz/quentin
Annette - 24 Oct 2005 17:53 GMT > This post not CC'd by email > On Sun, 23 Oct 2005 20:50:31 -0700, Chris J. <chris@noadress.com> [quoted text clipped - 6 lines] > antioxidants vitamins are required when the polyphenols are present > since recycling occurs so I wasn't concerned about getting enough. Hi there Quentin,
I have always known, even if intuitively, that fresh ordinary foods just had to be the best way to obtain all the necessary items needed to promote good health. I mean, it's simply logical, after all, the human race evolved without supplements! Less helpful though, was knowing just which foods were more nutritious and health-promoting, especially given the metabolic disorder we call T2 diabetes. We have to make choices based on availabilty and cost, let alone the limited capacity of just how much we can eat in one day!
You initiated my interest in seeking to find out all I could about just what is in our food, what it did for us, and so on. I'm still struggling to understand a lot of the info I've collected!
BUT, I had not come across the term polyphenols, or more likely, had not noticed that particular name for this subset of micronutrients.
So I went Googling, and found out a lot of interesting things, and not only about polyphenols.
For those other than yourself, who would also like to learn a little more about this fascinating area of nutrition that is less commonly discussed by dieticians, here are some of the major sites I found. Do feel free to correct any errors I may have made in writing this.
For those who just want something fairly easy to read and follow; http://www.ars.usda.gov/Aboutus/docs.htm?docid=4142 Phytonutrient FAQs
For those who want something a bit more scientific and more in detail, including a very nice little chart; http://encyclopedias.families.com/bioactive-food-components-201-205-efc Bioactive food components.
Finally, for the really clever people who like to really get into scientific studies, here is an abstract about current studies on polyphenols in particular. Since I did not wish to pay for the full article, I did not go any further with this one; http://www.ajcn.org/cgi/content/abstract/79/5/727 Polyphenols: food sources and bioavailability1,2
Anyway, here's a small idea of what this is all about, for the majority of folk who simply want a bit of and idea on what to eat.
1. Phytonutrients, which include the polyphenols, are found naturally in all ordinary fresh foods. You'll notice that they are also called MICRO nutrients. That's because they are such a small part of what we eat, yet are extremely important in maintaining good health, or even healing us of damage done to our bodies.
MACRO-nutrients are the Big 3 stuff, like protiens, fats and carbohydrates, that provide the energy all living things need. We need lots and lots of that stuff, but it simply is not enough by itself to keep the complicated system (our metabolism) working smoothly. Actually, one of the items included in these studies that *does* come in large, obvious amounts, is fiber. It just looks kind of useless, seeing as it contributes nothing (or very little) to our daily energy needs. So it doesn't make the Big 3. But it is still very important for a number less obvious metabolic reasons. Somewhere in the middle are the vitamins and minerals we have come to know and love in modern times.
2. Most studies concentrate on the ones from the vegetable kingdom, since there are so many of them. In short, fruit and vegetables are wonderful sources of these very important yet comparitively minor parts of our food.
3. Polyphenols are also known as flavinoids or similar, with those funny names you often see Quentin writing about in this group. Like lutein, quercetin, hesperidin, zeaxanthin, or that real tongue twister, astaxanthin, one of the ones that comes from sea animals like salmon or prawns. There's a zillion of them, many that appear to do nothing, and heaps that are not understood at all, one way or the other.
So eat lots of veges and some fruit, and anything else you see Quentin recommending as being important. It probably is! If at all possible, always try to meet your nutritional needs from natural food sources. It the best way to ensure you get a balanced amount, and have included things you need, including those that even the scientists still don't know about. Variety is not only more interesting, but gives you a larger range of possibilities, as well.
Annette Munching her way through life!
Jefferson - 24 Oct 2005 20:14 GMT > Finally, for the really clever people who like to really get into scientific > studies, here is an abstract about current studies on polyphenols in > particular. Since I did not wish to pay for the full article, I did not go > any further with this one; > http://www.ajcn.org/cgi/content/abstract/79/5/727 > Polyphenols: food sources and bioavailability1,2 The full article is accessible for free and has some articles citing it that maybe of interest. ;) http://www.ajcn.org/cgi/content/full/79/5/727
Frank Roy Jefferson, Maryland
Annette - 25 Oct 2005 14:30 GMT > > Finally, for the really clever people who like to really get into scientific > > studies, here is an abstract about current studies on polyphenols in [quoted text clipped - 9 lines] > Frank Roy > Jefferson, Maryland Thank you so much, Frank!
I admit to having you in mind when I referred to the abstract. I just knew you'd know how to find the whole article!
Now all I have to do is find time to read and try to follow all the information in there. Still, I guess it keeps me off the streets!
As I learn more and more about the wonders to be discovered in living organisms and their systems, it always fills me with awe at the complex intricacy of it all. As a great line in the classic TV show "MASH" says: "The glory of it all!"
Life is truly a divine dance.
Annette
Quentin Grady - 24 Oct 2005 21:16 GMT This post not CC'd by email On Mon, 24 Oct 2005 16:53:48 GMT, "Annette" <acianthus@bigpond.com> wrote:
>Hi there Quentin, > >I have always known, even if intuitively, that fresh ordinary foods just had >to be the best way to obtain all the necessary items needed to promote good >health. I mean, it's simply logical, after all, the human race evolved >without supplements! G'day G'day Annette,
Sure did ... well almost. Many civilizations added spices which often turn out to be pretty power supplements. Cloves for instance have a huge antioxidant capacity. That said, such "supplementing" is too recent to have played much part in natural selection.
Have _we_ evolved to fit cosily into the beneficent cradle of evolution? That is a more disturbing question. Basically I view myself and other T2 diabetics as damaged goods. Our metabolic pathways don't all behave in the carefully fashioned manner laid down by evolution. Put simply, we MIGHT need some supplementation. While research has firmly established that non-diabetic Australians can convert alpha linolenic acid, a slightly shorter chain omega-3 into the longer chain EPA and DHA with reasonable efficiency after a couple of weeks the situation with T2 diabetics is more problematic. We might need supplementing with fish oil.
[snip]
>1. Phytonutrients, which include the polyphenols, are found naturally in all >ordinary fresh foods. You'll notice that they are also called MICRO [quoted text clipped - 13 lines] >Somewhere in the middle are the vitamins and minerals we have come to know >and love in modern times. Your comments here got me thinking. Are polyphenols present in small amounts than vitamins? IMHO polyphenols are more like vitamins who missed out on the titles. To take a simple example think of betacarotene. It exists naturally in two forms, cis beta-carotene and trans-betacarotene. Only the trans form converts to Vit A. The cis form is a very useful antioxidant. People typically regard Vit A as a vitamin and include beta-carotene, its precursor as also being a vitamin. What of its close cousins, lutein and zeaxanthin? Do they deserve vitamin status? Are they "essential" to life as is required in some definitions of vitamins? Well seeing is pretty essential and the retina in eyes don't function without lutein and zeaxanthin. Even hens have evolved to acknowledge this simple fact of life. Of the thousands of bioflavonoids they have in their diet the two they insist on passing on to their offspring, if they get the chance, are lutein and zeaxanthin. Some like beta-cryptoxanthin may well cut the risk of arthritis and cervical cancer but is this essential? Essential tends to defined in rather cruel terms ... surviving to produce offspring.
>2. Most studies concentrate on the ones from the vegetable kingdom, since >there are so many of them. In short, fruit and vegetables are wonderful >sources of these very important yet comparitively minor parts of our food. Polyphenols are typically present in equal or LARGER amounts that vitamins. Polyphenols Vit C Apples 187 7 Apricot 66 8 Apricot,dried 307 1 Avocado 148 8 Banana 120 10 Blackcurrant 1150 160 Blueberry 740 12 Boysenberry 630 9 Cherry 178 15 Date 317 0 Grapefruit 46 37 Kiwifruit 108 97 Melon 23 33 Orange 39 52 Peach 112 9 Raisin 400 3 Raspberry 300 19 Strawberry 159 51 Watermelon 12 8
Large variation in composition of some antioxidants depending on colour (in most cases the stronger the colour the higher the antioxidants) Although they do not always have strong overall antioxidant activity, these fruits are excellent sources of carotenoids
Polyphenols are no light weights either. It is NOT as though Vit C is better than polyphenols weight for weight. The polyphenols in an apple recycle the Vit C that is present and make the EQUIVALENT Vit C about 1000 mg. IMHO polyphenols are the way to get a the efficacy of large doses of Vit C without the downside of overdosing.
>3. Polyphenols are also known as flavinoids or similar, with those funny >names you often see Quentin writing about in this group. Like lutein, >quercetin, hesperidin, zeaxanthin, or that real tongue twister, astaxanthin, >one of the ones that comes from sea animals like salmon or prawns. There's a >zillion of them, many that appear to do nothing, and heaps that are not >understood at all, one way or the other. The special thing about those unfamiliar names is that they represent essential substances for the health of bodily organs and other bits and pieces with familiar names.
Alpha carotene -> lungs Beta cryptoxanthin -> cervix Astaxanthin -> beta-cells in pancreas Hesperidin -> raising HDL -> clear arteries Quercetin -> eyes
>So eat lots of veges and some fruit, and anything else you see Quentin >recommending as being important. It probably is! [quoted text clipped - 7 lines] >Annette >Munching her way through life! Best wishes, must go.
 Signature Quentin Grady ^ ^ / New Zealand, >#,#< [ / \ /\ "... and the blind dog was leading."
http://homepages.paradise.net.nz/quentin
Annette - 25 Oct 2005 14:37 GMT Hi there Quentin,
Thanks for the info. As is patently obvious, I am not all that familiar with this subject, and am grateful for the knowledgable input you have provided.
So when you say, "must go", just don't go too far away, or for too long, will you?
Annette
> This post not CC'd by email > On Mon, 24 Oct 2005 16:53:48 GMT, "Annette" <acianthus@bigpond.com> [quoted text clipped - 132 lines] > > Best wishes, must go. Quentin Grady - 25 Oct 2005 20:02 GMT This post not CC'd by email On Tue, 25 Oct 2005 13:37:02 GMT, "Annette" <acianthus@bigpond.com> wrote:
>Thanks for the info. As is patently obvious, I am not all that familiar with >this subject, and am grateful for the knowledgable input you have provided. G'day G'day Annette,
Nah, you had it pretty right. It's just one of my personal things that polyphenols etc don't get the press they deserve because for too long they haven't been listed. The situation is a bit like fibre. There are polyphenols just as there are fibres. They aren't singular, simple or as easy to study as some vitamin that can be synthesised in a lab.
>So when you say, "must go", just don't go too far away, or for too long, >will you? I was rushing off to a meeting at work ... and I'm about to do so again ... right now.
>Annette
 Signature Quentin Grady ^ ^ / New Zealand, >#,#< [ / \ /\ "... and the blind dog was leading."
http://homepages.paradise.net.nz/quentin
Chris J. - 25 Oct 2005 23:01 GMT >G'day G'day Chris, > >Glad you liked it. It can be a bit of chore preparing the tables. I'm sure it must have been. Thanks for doing it.
> Vit C is something I haven't looked at much in the past. Vit C is a >water soluble antioxidant, whilst Vit E is fat soluble. To form an >antioxidant network where Vit C can recycle Vit E intermediaries are >required. The most obvious are the polyphenols. Put simply, less >antioxidants vitamins are required when the polyphenols are present >since recycling occurs so I wasn't concerned about getting enough.
>What people don't often realise is that vitamin supplements typically >provide the antioxidant vitamins abeit in the wrong stereoisomers >forms but omit the polyphenols to get the whole thing working >coherently. I knew about the wrong stereoisomers, but not about the polyphenols. Thanks!
BTW, I find it very interesting that as flavonoids, isoflavones and ellagic acid are all Polyphenols, and thus anti-oxidants, a google on ellagic acid turned up a great many claims that it's an anti-cancer agent too.
It's found in quantity in blueberries, blackberries, raspberries, red grapes, and strawberries.
I'm not sure, but I think that would make red wine a good source of it too.
>As far as I can see there are three major reasons why food is a better >source than supplements. [quoted text clipped - 6 lines] >C. The unexpected risks associated with excessive doses appear >diminished. Unless, of course, you decide to dine on Polar Bear liver... :-)
>This may be because food sources are less prone to >suppressing the functioning of closely related compounds. For example >a food that contains alpha and beta carotene is unlikely to the >suppress the action of alpha carotene whereas a supplement containing >beta carotene without alpha carotene is more likely to do so. And that could, perhaps, be the reason for the results in that beta-carotine cancer test that you mentioned a while back?
Alan S - 26 Oct 2005 00:27 GMT >>G'day G'day Chris, >> >>Glad you liked it. It can be a bit of chore preparing the tables. > >I'm sure it must have been. Thanks for doing it. I'd be interested to know how you set up the spaces Quentin. I usually have to resort to filling all the gaps with dots.
Cheers, Alan, T2, Australia.
 Signature Everything in Moderation - Except Laughter.
Quentin Grady - 26 Oct 2005 09:02 GMT This post not CC'd by email On Wed, 26 Oct 2005 09:27:55 +1000, Alan S <loralweightandcarbs@optusnet.com.au> wrote:
>>>G'day G'day Chris, >>> [quoted text clipped - 4 lines] >I'd be interested to know how you set up the spaces Quentin. >I usually have to resort to filling all the gaps with dots. I used spaces.
Tab spacings vary in .txt formats.
>Cheers, Alan, T2, Australia.
 Signature Quentin Grady ^ ^ / New Zealand, >#,#< [ / \ /\ "... and the blind dog was leading."
http://homepages.paradise.net.nz/quentin
Alan S - 26 Oct 2005 00:30 GMT >I knew about the wrong stereoisomers, but not about the polyphenols. >Thanks! [quoted text clipped - 9 lines] >I'm not sure, but I think that would make red wine a good source of it >too. Puts a new slant on the benefits of elderberry wine; just watch the additives if drinking with little old ladies who keep it in the cellar. Cheers, Alan, T2, Australia.
 Signature Everything in Moderation - Except Laughter.
Chris J. - 26 Oct 2005 06:28 GMT >>I knew about the wrong stereoisomers, but not about the polyphenols. >>Thanks! [quoted text clipped - 14 lines] >keep it in the cellar. >Cheers, Alan, T2, Australia. ROFL!!!!!!!!!!!!!!!!!!!!
My Grandmother used to make Elderberry wine, and used to a generous amount of Vodka to, as she would say, "give it some body".
Hmmmm... Thanks to your post, I'm thinking of making a batch (sans vodka!!!) after my trip. It's been quite a while since I've made wine, but I still have my gear.
Quentin Grady - 26 Oct 2005 09:09 GMT This post not CC'd by email On Wed, 26 Oct 2005 09:30:22 +1000, Alan S <loralweightandcarbs@optusnet.com.au> wrote:
>>I knew about the wrong stereoisomers, but not about the polyphenols. >>Thanks! [quoted text clipped - 6 lines] >>It's found in quantity in blueberries, blackberries, raspberries, red >>grapes, and strawberries. G'day G'day Alan,
The stand out best source of ellargic acid is reported to be black raspberries. There is a wine maker who uses them here, in another province, but I've never seen any. I try to persuade my friendly berry growers to put some in but as yet without success.
BTW my black mulberry has an incredible amount of fruit on this year.
>>I'm not sure, but I think that would make red wine a good source of it >>too. > >Puts a new slant on the benefits of elderberry wine; just >watch the additives if drinking with little old ladies who >keep it in the cellar. While it is a bit off topic, if Asian bird flu strikes I'll be queuing up for Tamiflu like everyone else. If none is available I'll be into the blackcurrant jam, elderberry wine and ginger to ease the aches and pains not to mention nausea.
>Cheers, Alan, T2, Australia.
 Signature Quentin Grady ^ ^ / New Zealand, >#,#< [ / \ /\ "... and the blind dog was leading."
http://homepages.paradise.net.nz/quentin
Alan S - 26 Oct 2005 15:48 GMT >G'day G'day Alan, > [quoted text clipped - 4 lines] > >BTW my black mulberry has an incredible amount of fruit on this year. Hi Quentin
We've had a glut of strawberries here recently, they were selling at AU$5 kg. I zapped them in the food processor and filled up several ice-block trays for future use. They are great in thickish yoghurt because a couple of strawberry blocks turn a half cup of yoghurt into a sort of frozen yoghurt by the time they thaw. Frozen blueberries have a similar effect.
Maybe you could do the same with your mulberries. I used to have a bush as a kid (I was really popular when we had to feed silkworms in a school experiment:-), but haven't tasted them since.
Maybe I'll try some in early February in Hawke's Bay:-) Cheers, Alan, T2, Australia.
 Signature Everything in Moderation - Except Laughter.
Quentin Grady - 26 Oct 2005 09:00 GMT This post not CC'd by email On Tue, 25 Oct 2005 15:01:47 -0700, Chris J. <chris@noadress.com> wrote:
>>C. The unexpected risks associated with excessive doses appear >>diminished. > >Unless, of course, you decide to dine on Polar Bear liver... :-) LOL.
Natural doesn't make food safe. Yes. It needs saying.
>>This may be because food sources are less prone to >>suppressing the functioning of closely related compounds. For example [quoted text clipped - 4 lines] >And that could, perhaps, be the reason for the results in that >beta-carotine cancer test that you mentioned a while back? The researchers weren't keen to find fault with their technique. In consequence many explanations were published for the adverse result. My own thoughts were that by using synthetic beta-carotene that is trans beta-carotene which the body converts to Vit A, the functioning of cis beta-carotene from dietary sources was obstructed in some way. Recently I saw a suggestion that beta-cryptoxanthin is a bioflavonoid that protects the lungs. Perhaps the supplementing interfered with its action. IMHO when it comes to bioflavonoids, variety is a good thing.
Best wishes,
 Signature Quentin Grady ^ ^ / New Zealand, >#,#< [ / \ /\ "... and the blind dog was leading."
http://homepages.paradise.net.nz/quentin
Chris J. - 27 Oct 2005 07:54 GMT >This post not CC'd by email > [quoted text clipped - 6 lines] > > Natural doesn't make food safe. Yes. It needs saying. Hmmm.. does this mean that Castor beans, even organically grown, might be unhealthy? Or even Castor Bean extract (otherwise known as Ricin)?
:-) On a serious note, I have seen people taking all kinds of mega-doses of herbs and supplements, claiming that "it's natural, so it's safe". Ugh...
>>And that could, perhaps, be the reason for the results in that >>beta-carotine cancer test that you mentioned a while back? [quoted text clipped - 4 lines] >trans beta-carotene which the body converts to Vit A, the functioning >of cis beta-carotene from dietary sources was obstructed in some way. I'd certainly agree with that.
Quentin Grady - 27 Oct 2005 08:46 GMT This post not CC'd by email On Wed, 26 Oct 2005 23:54:17 -0700, Chris J. <chris@noadress.com> wrote:
>> Natural doesn't make food safe. Yes. It needs saying. > >Hmmm.. does this mean that Castor beans, even organically grown, might >be unhealthy? Or even Castor Bean extract (otherwise known as Ricin)? >:-) LOL. I cracked up at the thought of some one suggesting ORGANICALLY GROWN castor beans would be safe.
G'day G'day Chris,
I'll store that gem for future use when we get one of the "it's all natural so its healthy brigade."
>On a serious note, I have seen people taking all kinds of mega-doses >of herbs and supplements, claiming that "it's natural, so it's safe". >Ugh... Added to that, the law is exceeding lenient in allowing supplement manufacturers to claim a substance as natural. The classic example is Natural Vit E. Naturally occurring Vit E is usually a mixture of tocopherols with gamma tocopherol being present in the highest amounts. The regulations coerce the supplement manufacturers to state amounts per capsule in IU which amounts to alpha-tocopherol equivalents. Currently the manufacturers are allowed to convert the gamma tocopherol into alpha tocopherol and still call it natural.
Does the conversion give the correct stereoisomers for the tocopherol? Well that is anyone's guess.
Best wishes,
 Signature Quentin Grady ^ ^ / New Zealand, >#,#< [ / \ /\ "... and the blind dog was leading."
http://homepages.paradise.net.nz/quentin
Chris J. - 28 Oct 2005 07:37 GMT >This post not CC'd by email > [quoted text clipped - 6 lines] >LOL. I cracked up at the thought of some one suggesting ORGANICALLY >GROWN castor beans would be safe. Well, you certainly wouldn't want the inorganic kind: all those pesticides can be unhealthy.... :-)
>>On a serious note, I have seen people taking all kinds of mega-doses >>of herbs and supplements, claiming that "it's natural, so it's safe". [quoted text clipped - 11 lines] >Does the conversion give the correct stereoisomers for the tocopherol? >Well that is anyone's guess. I've seen quite a bit of debate on Vitamin E, and the stereoisomer issue seems to be a big one.
As for the conversion process, I can't back up what I'm about to say, but for me it brings to mind the hydrogenation process that some manufacturers put fats through, that gives us all those wonderful triglycerides. Ugh.
Jefferson - 22 Oct 2005 07:04 GMT > G'day G'day Folks, > [quoted text clipped - 41 lines] > BTW. The RDA, is currently about 60 to 80 mg. > Someone can no doubt find an official figure. The figures in the following article are developed from the Iowa Women's Health Study. I assume that the problem with vitamin C is that in some tissue glucose and vitamin C compete for GLUT1.
Does supplemental vitamin C increase cardiovascular disease risk in women with diabetes? - http://www.ergogenics.org/ctox.html The first quintile should be 71 rather than 171 mg/d since the total from both food and supplements is only 85 mg/d in the first quintile.
I received the full report from Dr. Folsom. The relative risk for the safest quintile for all vitamin C intake was a median of 139 mg/d for diabetic women.
Relative risks (RRs) and 95% CIs for mortality from cardiovascular disease, coronary artery disease, and stroke according to quintile of vitamin C intake from food and supplements in postmenopausal women with diabetes in the Iowa Women’s Health Study, 1986–2000
Quintile of median vitamin C intake from food and supplements (mg/d) 1 (85) 2 (139) 3 (189) 4 (279) 5 (667)
A thread on the topic - http://tinyurl.com/d2cqc.
Frank
Quentin Grady - 22 Oct 2005 09:08 GMT This post not CC'd by email On Sat, 22 Oct 2005 02:04:18 -0400, Jefferson <croom1935@netscape.net> wrote:
>The figures in the following article are developed from the Iowa Women's >Health Study. I assume that the problem with vitamin C is that in some [quoted text clipped - 21 lines] > >Frank G'day G'day Frank,
Thanks. It is great to see this study of 15 years duration shows increased Vit C from diet is not detrimental.
Supplements are however a different story. With supplements being topical at the moment this provides an opportune example of the hazards of supplementation.
It would appear that it is a bit like red wine and many other things that illustrate the famous "J" curve. Less than 100 mg is beneficial but over that is detrimental.
Best wishes,
 Signature Quentin Grady ^ ^ / New Zealand, >#,#< [ / \ /\ "... and the blind dog was leading."
http://homepages.paradise.net.nz/quentin
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