| It's A Conspiracy
Joined: May 2005
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| Quote:
From notmilk.com
STOMACH ACHES CAUSED BY CARRAGEENAN
Some folks can eat just about anything. Some people might
have no problem producing a tall glass of homemade soymilk,
then converting it to chocolate milk by adding the
following ingredients: Three teaspoons of sugar. One
teaspoon of chocolate powder. Two tablespoons of Vaseline
petroleum jelly. The Vaseline might produce gastric
distress, and the soymilk drinkers would erroneously
conclude that they are "allergic" to soy. Some people
do not experience gastric discomfort caused by the
Vaseline-like food additive, carrageenan. Many people do.
Carrageenan is a commonly used food additive that is
extracted from red seaweed by using powerful alkali
solvents. These solvents would remove the tissues
and skin from your hands as readily as would any acid.
Carrageenan is a thickening agent. It's the vegetarian
equivalent of casein, the same protein that is isolated
from milk and used to thicken foods. Casein is also
used to produce paints, and is the glue used to hold
a label to a bottle of beer. Carrageenan is the magic
ingredient used to de-ice frozen airplanes sitting on
tarmacs during winter storms.
IS CARRAGEENAN REALLY NATURAL?
Carrageenan is about as wholesome as monosodium glutamate
(MSG), which is extracted from rice, and can equally be
considered natural. Aspartame (NutraPoison) is also natural,
as it is extracted from decayed plant matter that has been
underground for millions of years (oil). So too are many
other substances such as carrageenan that can also be
classified by FDA and USDA as wholesome and natural
food additives.
Just because something comes from a natural source does
not mean that it is safe. The small black dots in the
eyes of potatoes contain substances that are instantly
fatal if eaten. Got poison? You will if you eat the
black dots on the "eyes" of potatoes.
Carrageenan is a gel. It coats the insides of a stomach,
like gooey honey or massage oil. Digestive problems often
ensue. Quite often, soy eaters or soymilk drinkers react
negatively to carrageenen, and blame their discomforting
stomachaches on the soy.
High weight molecular carrageenans are considered to be safe,
and were given GRAS status (safe for human consumption) by
the FDA. Low weight carrageenans are considered to be
dangerous. Even SILK admits this.
In order to get more information about carrageenan from
a scientist, I spoke with one of America carrageenan
experts, Joanne Tobacman, M.D. Dr. Tobacman teaches
clinical internal medicine at the University of Iowa
College of Medicine. I explained to Dr. Tobacman that
I rejected animal studies (we discussed valid concerns
about animal research, and why they never produce
reliable results for humans). I requested evidence of
human trials that might show carrageenan to be a
danger for human consumption.
Dr. Tobacman shared studies with me that demonstrate that
digestive enzymes and bacterial action convert high weight
carrageenans to dangerous low molecular weight carrageenans
and poligeenans in the human gut. These carrageenans
have been linked to various human cancers and digestive
disorders. Again, I remind you that Tobacman's evidence
and conclusions are based upon human tissue samples,
not animal studies.
I will cite additional information from four studies:
1) Filament Disassembly and Loss of Mammary Myoepithelial
Cells after Exposure to Carrageenan, Joanne Tobacman,
Cancer Research, 57, 2823-2826, July 15, 1997
2) Carrageenan-Induced Inclusions in Mammary Mycoepithelial
Cells, Joanne Tobacman, MD, and Katherine Walters, BS,
Cancer Detection and Prevention, 25(6): 520-526 (2001)
3) Consumption of Carrageenan and Other Water-soluble
Polymers Used as Food Additives and Incidence of
Mammary Carcinoma, J. K. Tobacman, R. B. Wallace, M. B.
Zimmerman, Medical Hypothesis (2001), 56(5), 589-598
4) Structural Studies on Carrageenan Derived Oligisaccharides,
Guangli Yu, Huashi Guan, Alexandra Ioanviciu, Sulthan
Sikkander, Charuwan Thanawiroon, Joanne Tobacman, Toshihiko
Toida, Robert Linhardt, Carbohydrate Research, 337 (2002),
433-440
In her 1997 publication (1), Tobacman studied the effect
of carrageenan on the growth of cultured human mammary
epithelial cells over a two week period. She found that
extremely low doses of carrageenan disrupted the internal
cellular architecture of healthy breast tissue, leading
her to conclude:
"The widely used food additive, carrageenan has
marked effects on the growth and characteristics
of human mammary myoepithelial cells in tissue
cultures at concentrations much less than those
frequently used in food products to improve
solubility."
Tobacman continued her work by exposing low concentrations
of carrageenan for short intervals to human breast tissue
(2), and observed pathological alterations in cellular
membranes and intracellular tissues. Tobacman wrote:
"These changes included prominence of membrane-
associated vesicles that coalesced to form unusual
petal-like arrays...and development of stacked
rigid-appearing inclusions in the lysosomes that
arose from the membranes of the petal-like arrays
and from smaller, dense spherical bodies that
formed clumps."
In reporting a historical perspective, Tobacman
revealed that carrageenan has been found to
destroy other human cells in tissue cultures,
including epithelial intestinal cells and
prostate cells. She concludes:
"The association between exposure to low
concentrations of carrageenan in tissue
culture and destruction of mammary
myoepithelial cells may be relevant to
the occurrance of invasive mammary
malignancy in vivo and provides another
approach to investigation of mammary
carcinoma."
Tobacman's third paper (3) explored the increased
incidence of mammary carcinoma to the increased
consumption of stabilizers and additives such as
guar gum, pectin, xanthan, and carrageenan. While
no relationship between the either above named
additives and cancer was observed, carrageenan
showed a strong positive.
Although high molecular weight carrageenans are
considered to be safe, Tobacman demonstrates that
low molecular weight carrageenans are carcinogenic.
She writes:
"Acid hydrolysis (digestion) leads to shortening
of the carrageenan polymer to the degraded form,
poligeenan. It is not unreasonable to speculate
that normal gastric acid...may act upon ingested
carrageenan and convert some of which is ingested
to the lower molecular weight poligeenan during
the actual process of digestion. Also, some
intestinal bacteria possess the enzyme
carrageenase that degrades carrageenan."
Tobacman's 2002 publication (4) proves her earlier
hypothesis. She writes:
"Mild-acid hydrolytic depolymerization of
carrageenan affords poligeenan, a mixture of
lower molecular weight polysaccharides and
oligosaccharide products."
Tobacman is currently preparing and characterizing
low molecular weight poligeenans (carcinogenic)
that have been extracted from human digestion
modalities. Her yet-to-be published data suggest
that carrageenans are dangerous for human consumption.
My advice: Read labels. If there is carrageenan
in a product, select an alternative.
This morning, I checked my local supermarket (ShopRite,
Emerson, NJ) to see which soymilk manufacturers added
carrageenan to their formulas.
REFRIGERATED SOYMILKS
The largest selling soymilk in America is SILK.
Do I pick on the industry leader? Damned right I
do. SILK sets the standard. You deserve to know the
truth. Just for the record, when SILK changes
their formula they will become my hero. In my
opinion, SILK tastes better than any of the
commercially available soymilks. Unfortunately,
consumers sacrifice good health for good taste.
That is not a fair trade, particularly for
our children.
SILK uses carrageenan. SILK plain, SILK chocolate.
SunSoy also uses carrageenan. Hershey's real chocolate
is not so real. They use it too. So does Nesquik.
THESE COMPANIES DO NOT USE CARRAGEENAN
VitaSoy does not have carrageenan! they use barley flower
as a thickener. 8th Continent does not use carrageenan
either. Their choice is to use cellulose gel and soy
lecithin to create a smoother soymilk.
SHELF STABLE
On the shelf (non-refrigerated), I found Rice Dream.
They do not use carrageenan. They use xantham gum.
Soy Dream (made by Imagine Foods) does not use it
either. Their emulsifier is rice syrup. Eden Soy
does not use it. They use barley extract.
Do a little experiment. Drink a quart of SILK.
Pay careful attention to your carrageenen-induced
tummy ache and intestinal discomfort. Many consumers
unfairly blame that on soy. Now you know the truth.
Drink a quart of VitaSoy, 8th Continent, Soy Dream,
or Eden Soy, and you will not get the garrageenan-blues.
Why do some manufacturers "get it," while others
remain clueless? | Quote:
From a study by the World Health Organization:
Summary of JECFA Reports
In 2001 the Joint FAO/WHO Expert Committee on Food Additives (JECFA) completed a re-evaluation of carrageenan that began in 1998. The JECFA is an independent international body of expert scientists that functions under the auspices of the Food and Agriculture Organization (FAO) of the United Nations and the World Health Organization (WHO). Members of the JECFA Committee that reviewed carrageenan included representatives of universities and government agencies of the following countries: Norway, Australia, Canada, Finland, United States (FDA), Japan, Netherlands, Denmark, France, and the United Kingdom. During the course of the re-evaluation, the JECFA specifically reviewed the matter of the potential for gastrointestinal effects from ingestion of carrageenan. This included an evaluation of the effects of stomach flora on carrageenan, food processing conditions on carrageenan and the degradation of carrageenan in the stomach. Throughout the course of the re-evaluation, the JECFA considered genotoxicity studies, metabolism, reproduction and developmental toxicity, and short term and long-term mammalian feeding studies (including a 7.5 year feeding study in monkeys). The JECFA also considered information about the current understanding of the concept of cell proliferation and promotion of tumors.
In their review, the JECFA correlated carrageenan feeding levels (and effect levels) in test animals to human intake of carrageenan. This is lacking in the Tobacman review article. The JECFA estimated that the human intake of carrageenan is 30-50 mg/person/day. However, the JECFA concluded that based on the rat studies, if effects from ingestion of carrageenan were observed, the levels of ingestion far exceeded those of human consumption. For example, the JECFA noted that no proliferative effect of carrageenan in the colon mucosa was observed at 1.5% carrageenan in the rat diet. This corresponds to an intake of carrageenan of 750 mg/kg body weight per day, which far exceeds the aforementioned estimated human intake. To put this consumption level in perspective, this carrageenan intake level of 750 mg/kg body weight/day corresponds to a daily consumption of 58 gallons of chocolate milk per day by a 150 lb person!
The fact that proliferative effects were seen at 2.6% in the diet is moot because the estimated carrageenan consumption is below the threshold concentration for these effects. Further, the JECFA also noted that at 5% in the diet of rats, carrageenan did not act as at tumor promotor. Effects seen at exceptionally high levels of exposure to carrageenan were determined to be caused by altered toxicokinetics. See the adjacent table for a comparison of the estimated human carrageenan intake and the experimental carrageenan intakes noted in the JECFA review.
Overall, the JECFA concluded that there was no concern to the continued consumption of carrageenan and assigned it to the group "Acceptable Daily Intake – not specified". This classification is used when the JECFA has determined that a food additive does not represent a hazard to health. It also allows for the use of the additive at the level necessary to achieve the technical or functional effect in food, also referred to as the level of Good Manufacturing Practices (GMP). The complete report of this review was made publicly available in 2003 and therefore post dates the review by Dr. Tobacman. http://www.seaweed.ie/uses_general/carrageenans.html | Support: http://whqlibdoc.who.int/trs/WHO_TRS_909.pdf |