Amount of vit C in un-supplemented western diet

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trillian
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Amount of vit C in un-supplemented western diet

Post Number:#1  Post by trillian » Fri Nov 17, 2006 10:23 am

Does anyone know a credible figure for the amount of vit C the average person on a Western
(US / UK) type diet gets per day?

Taking into consideration the relatively low intake of vegetables and even then they
are usually cooked.

(When I think about how I used to eat in my youth I am amazed I'm still alive.)

Anyway, if there are good figures for this somewhere let me know, I am currently
writing a book and need to finish the vit c chapter soon.

Thanks,
sheryl

zucic

Re: Amount of vit C in un-supplemented western diet

Post Number:#2  Post by zucic » Fri Nov 17, 2006 11:19 am

trillian wrote:Does anyone know a credible figure for the amount of vit C the average person on a Western
(US / UK) type diet gets per day?

It must be very miserable. In fact, large part of vitamin C is oxidized, and
used thanks to some recycling. This is probably how potato eradicated
scurvy in Norway. Raw potato is toxic, and cooked potato probably delivers
vitamin C in oxidized form.

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At least 10 mg

Post Number:#3  Post by ofonorow » Fri Nov 17, 2006 7:58 pm

Well, if the diet is less than 10 mg daily - you die of scurvy.
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Post Number:#4  Post by trillian » Sat Nov 18, 2006 1:24 pm

Well, what I will probably have to do is just see if I can get a figure for
how much cooking decreases the vit C content and then use a chart I
have for different foods and let people judge for themselves how much
they probably get in their diet. (and I will mention that some things
that are prominant in many diets, like sugar, increase the need for vit C so they
lose out on both sides)

Sheryl

individual freedom

amount of c in "good diet"

Post Number:#5  Post by individual freedom » Sat Nov 18, 2006 10:15 pm

trillian,

one of the books i am now reading touched on this very subject.

book: the real vitamin and mineral book 2nd ed. by shari lieberman and nancy bruning

it's ten years old, but seems to be an honest and fairly accurate work. (they could have done more reading of atkins before being somewhat critical of him)

i can't find the exact item you are looking for but i thought i came across it in my read.

here is an example: p.24: "the results of several studies have indicated that hospital patients as a group are some of the most malnourished people in the world. in one study, only 12 percent of the patients tested had normal levels of vitamins in their bodies. yet most of them had been eating a "normal American diet."

somewhere in the book i believe there was mention of how a third??? of Americans do not eat any vegitables???
there was other discussion of how short lived vitamin c is in the fruit we might use, as well as other talk regarding the low levels of vitamins and minerals in the food we eat or the food fed to the livestock we eat.

hope this helps your research for your book.

individual freedom (richard)

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Post Number:#6  Post by trillian » Tue Nov 21, 2006 8:56 am

Thanks Richard, I'll see what I can find online under those author names.

Yeah the thing about hospital food is just glaring evidence for a fundamental
problem in conventional medicine, which is that they almost completely
ignore diet and nutrition (and are often not trained in nutrition).

I think more and more awareness is happening though. Over here we have
had a major shake-up in school meals and I think some of that is trickling
down to hospitals as well.

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Sulpher In System Allows Ascorbate Recycling

Post Number:#7  Post by Van Carman » Tue Nov 21, 2006 6:07 pm

As I understand,a key recycling enzyme is enabled with sulfhydryls present in humans,to recycle ascorbic acid.This may help keep many going.Others may input on this.Van
cinnamon and scurvy

Kathy

Post Number:#8  Post by Kathy » Wed Nov 22, 2006 4:02 am

Trillian, places like the World Health Organization and the FDA and other countries' equivalents keep statistics like this. Below is a passage from a 2004 report on Vitamin and Mineral Requirements in Human Nutrition. The sources are cited so they should be trackable. (When reading try to remember the motives of the WHO is more focused on survival and accute disease prevention than optimal health. So, when they say that 70 mg/day is adequate, well it is adequate for preventing clinical scurvy in most people. However, it' s definitely not optimal.)

<pre>
In Europe and the United States an adequate intake of vitamin C is
indicated by the results of various national surveys (36–38 ). In Germany and
the United Kingdom, the mean dietary intakes of vitamin C in adult men and
women were 75 and 72mg/day (36), and 87 and 76mg/day (37), respectively.
In addition, a recent survey of elderly men and women in the United
Kingdom reported vitamin C intakes of 72 (SD, 61) and 68 (SD, 60)mg/day,
respectively (39). In the United States, in the third National Health and Nutrition
Examination Survey (38 ), the median consumption of vitamin C from
foods during the years 1988–91 was 73 and 84mg/day in men and women,
respectively. In all of these studies there was a wide variation in vitamin C
intake. In the United States 25–30% of the population consumed less than 2.5
servings of fruit and vegetables daily. Likewise, a survey of Latin American
children suggested that less than 15% consumed the recommended intake of
fruits and vegetables (40). It is not possible to relate servings of fruits and
vegetables to an exact amount of vitamin C, but the WHO dietary goal of
400g/day (41), aimed at providing sufficient vitamin C to meet the 1970
FAO/WHO guidelines—that is, approximately 20–30mg/day—and lower
the risk of chronic disease. The WHO goal has been roughly translated into
the recommendation of five portions of fruits and vegetables per day (42).
Reports from India show that the available supply of vitamin C is
43mg/capita/day, and in the different states of India it ranges from 27 to
66mg/day. In one study, low-income children consumed as little as 8.2mg/day
of vitamin C in contrast to a well-to-do group of children where the intake
was 35.4mg/day (43). Other studies done in developing countries found
plasma vitamin C concentrations lower than those reported for developed
countries, for example, 20–27mmol/l for apparently healthy adolescent boys
and girls in China and 3–54mmol/l (median, 14mmol/l) for similarly aged
Gambian nurses (44, 45), although values obtained in a group of adults from
a rural district in northern Thailand were quite acceptable (median, 44mmol/l;
range, 17–118mmol/l) (46). However, it is difficult to assess the extent to
which subclinical infections are lowering the plasma vitamin C concentrations
seen in such countries.</pre>

individual freedom

Post Number:#9  Post by individual freedom » Wed Nov 22, 2006 10:57 am

trillian (sheryl),

from the main page of the vitamin c foundation, under breaking news:

http://www.medicalnewstoday.com/medical ... wsid=54550

i think you may have seen this, but if not, the links may be of help.

regards,

individual freedom (richard)


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