How sweet it isn't -- if artificial sugar is so splendid,
why aren't we thin? Sora Song www.time.com 2006.06.12 issue:
Murray 2006.06.05
http://groups.yahoo.com/group/aspartameNM/message/1354
http://www.time.com/time/magazine/article/0,9171,1200762,00.html
From the Jun. 12, 2006 issue of TIME magazine
From the Magazine Eating Smart
How Sweet It Isn't
If artificial sugar is so splendid, why aren't we thin?
By SORA SONG 628 words letters@...
Posted Sunday, Jun 4, 2006
The scene could have passed for a paid advertisement:
a barista at a New York City coffee bar informed a customer
that the café had run out of Splenda,
the sugar substitute in the bright yellow packets.
To the customer, it was tantamount to betrayal.
"Are you very sure?" he asked, offering to settle
for Equal or Sweet'n Low.
But all that was left was sugar.
The man shook his head (sugar!), pushed his cup
back across the counter and demanded a refund.
It's a sentiment echoed by millions of Americans who are fanatical about
getting their sweets -- just as long as the sweets come sugar-free.
By 2004, 180 million Americans were buying sugar-free products,
according to a national survey by the Calorie Control Council,
up from 109 million in 1991.
A 2005 report by ACNielsen found that while the low-carb craze
was fading, low-sugar packaged items represented the
second-fastest-growing segment (behind organics)
in the good-for-you product industry.
Cutting out sugar sounds like a winning strategy for a country
that's 66% overweight or obese,
but are sugar substitutes in fact good for you?
The scientific record is less than absolute.
Past studies of saccharin and aspartame,
packaged as Sweet'n Low and Equal, respectively,
suggested that large doses could cause cancer in rats,
although human studies have shown no such link.
The Food and Drug Administration says these high-intensity
sweeteners -- along with sucralose (Splenda) -- pose
no threat to human health.
Most nutrition experts are willing to go along with that -- with caveats.
"I suspect that if there were anything bad
we would have found it by now," says Kelly Brownell,
director of Yale's Rudd Center for Food Policy and Obesity.
"My real concern would be with children. Heavy-duty sweeteners
haven't been proved to be unsafe,
but I'm not convinced that they're safe."
It's also unclear whether switching to artificial sweeteners
helps you lose weight, though a glance at our collective potbelly
suggests that it doesn't.
Some researchers think artificial sweeteners
may actually interfere with our efforts to diet.
A 2004 study by psychologists at Purdue University found that when
rats were fed artificially sweetened liquids for 10 days,
they lost their innate ability to gauge the calorie content of foods
containing real sugar.
In nature, the sweeter the food, the greater the calories.
Humans have adapted over millions of years to seek out food
that tastes sweet, and not just for survival.
Eating sweets can reduce levels of stress hormones, calm babies
and relieve pain.
Some experts suspect, however, that our desire for sweet things
has been reinforced -- and perhaps even intensified -- by
our environment.
Susan Schiffman, a professor of medical psychology
at Duke University Medical Center, has found that African Americans
and Hispanics like their food significantly sweeter than the rest of the
population -- a result she suspects is from campaigns that market
high-sugar grape and orange sodas to predominantly ethnic populations.
Other experts speculate that the whole American diet may be calibrated
to an artificially high level of sweetness, and that we may be in danger
of generalizing our propensity for sweets -- artificial or otherwise -- to
everything we eat.
"Why do we have so much sugar in things like peanut butter?"
Brownell asks. "Why do they put sugar in soups?"
You can't take the sugar out of soup, of course, but you don't have
to add to the trough.
The key, as always, is to read labels and distinguish fact from
marketing fiction.
Low-sugar Froot Loops, for example, have a third less sugar
than the original.
But if you think the new version packs fewer calories or better nutrition,
think again.
"They aren't able to turn a sow's ear into a silk purse,"
says Michael Jacobson of the Center for Science in the Public Interest,
"but at least they succeeded in putting lipstick on the pig."
http://www.time.com/time/searchresults?query=%20SORA%20SONG
More by author "Sora Song" 288 results
http://web.mit.edu/newsoffice/2006/knight.html
Twelve journalists selected as Knight Fellows
Martha Henry, Program in Science, Technology, and Society
May 8, 2006
Twelve journalists from the United States, Brazil, Germany, Japan,
Kenya and China have been selected to spend the 2006-07 academic
year on campus as the 24th class of Knight Science Journalism Fellows.
The incoming fellows, who will be taking classes, attending seminars,
visiting labs and conducting interviews at MIT, are part of the
Program in Science, Technology and Society.
Here is the new group of journalists:
Sora Song is a science reporter for Time magazine.
Her recent work includes stories about sleep deprivation,
pro-anorexia web sites and the soaring rate of Caesarean sections.
http://www.yaleruddcenter.org/home.aspx
http://www.yaleruddcenter.org/contact.aspx
Kelly D. Brownell
Department of Psychology, Yale University, Box 208205,
New Haven, CT 06520-8205. kelly.brownell@...
Rudd Center for Food Policy & Obesity
309 Edwards Street
Yale University New Haven, CT 06520-8369
http://www.yaleruddcenter.org/default.aspx?id=257 papers
Am J Public Health. 2000 Jun; 90(6): 854-7.
Small taxes on soft drinks and snack foods to promote health.
Jacobson MF, Brownell KD.
Center for Science in the Public Interest,
Washington, DC 20009-5728, USA. jacobson@...
Health officials often wish to sponsor nutrition and other health promotion
programs but are hampered by lack of funding.
One source of funding is suggested by the fact
that 18 states and 1 major city levy special taxes on soft drinks, candy,
chewing gum, or snack foods.
The tax rates may be too small to affect sales,
but in some jurisdictions, the revenues generated are substantial.
Nationally, about $1 billion is raised annually from these taxes.
The authors propose that state and local governments levy taxes on foods of
low nutritional value and use the revenues to fund health promotion
programs. PMID: 10846500
http://groups.yahoo.com/group/aspartameNM/message/1189
Michael F Jacobson of CSPI now and in 1985 re aspartame
toxicity, letter to FDA Commissioner Lester Crawford;
California OEHHA aspartame critique 2004.03.12; Center for
Consumer Freedom denounces CSPI: Murray 2005.07.27
*******************************************************
http://groups.yahoo.com/group/aspartameNM/message/1349
NIH NLM ToxNet HSDB Hazardous Substances Data Bank
inadequate re aspartame (methanol, formaldehyde, formic acid):
Murray 2006.06.05
http://groups.yahoo.com/group/aspartameNM/message/1353
carcinogenic effect of inhaled formaldehyde, Federal Institute of Risk
Assessment, Germany -- same safe level as for Canada:
Murray 2006.06.02
http://groups.yahoo.com/group/aspartameNM/message/1352
Home sickness -- indoor air often worse, as our homes seal in pollutants
[one is formaldehyde, also from the 11% methanol part of aspartame],
Megan Gillis, WinnipegSun.com: Murray 2006.06.01
"Of course, everyone chooses, as a natural priority,
to actively find, quickly share, and positively act upon the facts
about healthy and safe food, drink, and environment."
Rich Murray, MA Room For All rmforall@...
505-501-2298 1943 Otowi Road Santa Fe, New Mexico 87505
http://groups.yahoo.com/group/aspartameNM/messages
group with 71 members, 1,354 posts in a public, searchable archive
http://RMForAll.blogspot.com
http://groups.yahoo.com/group/aspartameNM/message/1143
methanol (formaldehyde, formic acid) disposition: Bouchard M
et al, full plain text, 2001: substantial sources are
degradation of fruit pectins, liquors, aspartame, smoke:
Murray 2005.04.02
http://toxnet.nlm.nih.gov/cgi-bin/sis/search/f?./temp/~HwoSfJ:1
HSDB Hazardous Substances Data Bank: Aspartame
ASPARTAME CASRN: 22839-47-0
METHANOL CASRN: 67-56-1
FORMALDEHYDE CASRN: 50-00-0
FORMIC ACID CASRN: 64-18-6
http://groups.yahoo.com/group/aspartameNM/message/1307
formaldehyde from 11% methanol part of aspartame or from red wine
causes same toxicity (hangover) harm: Murray 2006.05.24
Dark wines and liquors, as well as aspartame, provide
similar levels of methanol, above 120 mg daily, for
long-term heavy users, 2 L daily, about 6 cans.
Within hours, methanol is inevitably largely turned into formaldehyde,
and thence largely into formic acid -- the major causes of the dreaded
symptoms of "next morning" hangover.
Fully 11% of aspartame is methanol -- 1,120 mg aspartame
in 2 L diet soda, almost six 12-oz cans, gives 123 mg
methanol (wood alcohol). If 30% of the methanol is turned
into formaldehyde, the amount of formaldehyde, 37 mg,
is 18.5 times the USA EPA limit for daily formaldehyde in
drinking water, 2.0 mg in 2 L average daily drinking water.
Any unsuspected source of methanol, which the body always quickly
and largely turns into formaldehyde and then formic acid, must be
monitored, especially for high responsibility occupations, often with
night shifts, such as pilots and nuclear reactor operators.
http://groups.yahoo.com/group/aspartameNM/message/1106
hangover research relevant to toxicity of 11% methanol in aspartame
(formaldehyde, formic acid): Calder I (full text): Jones AW:
Murray 2004.08.05 rmforall
Since no adaquate data has ever been published on the exact disposition
of toxic metabolites in specific tissues in humans of the 11% methanol
component of aspartame, the many studies on morning-after hangover
from the methanol impurity in alcohol drinks are the main available
resource to date.
Jones AW (1987) found next-morning hangover from red wine with
100 to 150 mg methanol
(9.5% w/v ethanol, 100 mg/l methanol, 0.01%,
one part in ten thousand).
Pharmacol Toxicol. 1987 Mar; 60(3): 217-20.
Elimination half-life of methanol during hangover.
Jones AW.
Department of Forensic Toxicology, University Hospital,
SE-581 85 Linkoping, Sweden. wayne.jones@...
This paper reports the elimination half-life of methanol
in human volunteers.
Experiments were made during the morning after the subjects had
consumed 1000-1500 ml red wine
(9.5% w/v ethanol, 100 mg/l methanol) the
previous evening. [ 100 to 150 mg methanol ]
The washout of methanol from the body coincided
with the onset of hangover.
The concentrations of ethanol and methanol in blood were determined
indirectly by analysis of end-expired alveolar air.
In the morning when blood-ethanol dropped below the Km of liver
alcohol dehydrogenase (ADH) of about 100 mg/l (2.2 mM),
the disappearance half-life of ethanol
was 21, 22, 18 and 15 min. in 4 test subjects respectively.
The corresponding elimination half-lives of methanol
were 213, 110, 133 and 142 min. in these same individuals.
The experimental design outlined in this paper can be used to obtain
useful data on elimination kinetics of methanol
in human volunteers without undue ethical limitations.
Circumstantial evidence is presented to link methanol or its toxic
metabolic products, formaldehyde and formic acid,
with the pathogenesis of hangover. PMID: 3588516
http://groups.yahoo.com/group/aspartameNM/message/1286
methanol products (formaldehyde and formic acid) are main cause of
alcohol hangover symptoms [same as from similar amounts of
methanol, the 11% part of aspartame]: YS Woo et al, 2005 Dec:
Murray 2006.01.20
Addict Biol. 2005 Dec;10(4): 351-5.
Concentration changes of methanol in blood samples during
an experimentally induced alcohol hangover state.
Woo YS, Yoon SJ, Lee HK, Lee CU, Chae JH, Lee CT, Kim DJ.
Chuncheon National Hospital, Department of Psychiatry,
The Catholic University of Korea, Seoul, Korea.
http://www.cuk.ac.kr/eng/ sysop@...
Songsin Campus: 02-740-9714 Songsim Campus: 02-2164-4116
Songeui Campus: 02-2164-4114
http://www.cuk.ac.kr/eng/sub055.htm eight hospitals
[ Han-Kyu Lee ]
A hangover is characterized by the unpleasant physical and mental
symptoms that occur between 8 and 16 hours after drinking alcohol.
After inducing experimental hangover in normal individuals,
we measured the methanol concentration prior to
and after alcohol consumption
and we assessed the association between the hangover condition
and the blood methanol level.
A total of 18 normal adult males participated in this study.
They did not have any previous histories of psychiatric
or medical disorders.
The blood ethanol concentration prior to the alcohol intake
(2.26+/-2.08) was not significantly different from that
13 hours after the alcohol consumption (3.12+/-2.38).
However, the difference of methanol concentration
between the day of experiment (prior to the alcohol intake)
and the next day (13 hours after the alcohol intake)
was significant (2.62+/-1.33/l vs. 3.88+/-2.10/l, respectively).
[ So, the normal methanol level was 2.62 mg per liter,
and increasing that by 50% = 1.3 mg per liter to 3.88 mg per liter
caused hangover symptoms. The human body has about
5.6 liters blood, so adding 1.3 mg per liter gives an estimate
of 7.3 mg added methanol, as much as 4 oz diet soda.
Diet soda is about 200 mg aspartame per 12 oz can,
which is 22 mg (11% methanol), 1.83 mg methnol per ounce.
This suggests that alcohol drinkers are more sensitive to methanol
than the average diet soda drinker, some of whom find symptoms
from a third of a diet soda.]
A significant positive correlation was observed
between the changes of blood methanol concentration
and hangover subjective scale score increment when covarying
for the changes of blood ethanol level (r=0.498, p<0.05).
This result suggests the possible correlation of methanol
as well as its toxic metabolite to hangover. PMID: 16318957
[ The "toxic metabolite" of methanol is formaldehyde, which in turn
partially becomes formic acid -- both potent cumulative toxins
that are the actual cause of the toxicity of methanol.]
http://groups.yahoo.com/group/aspartameNM/message/870
Aspartame: Methanol and the Public Interest 1984: Monte:
Murray 2002.09.23
Humans suffer "toxic syndrome" (54) at a minimum lethal dose
of <1 gm/kg, much less than that of monkeys, 3-6 g/kg (42, 59).
The minimum lethal dose of methanol
in the rat, rabbit, and dog is 9.5, 7.0 , and 8.0 g/kg, respectively
(43);
ethyl alcohol is more toxic than methanol to these test animals (43)."
As a medical layman, I suggest that evidence mandates immediate
exploration of the role of these ubiquitious, potent formaldehyde
sources as co-factors in epidemiology, research, diagnosis,
and treatment in a wide variety of disorders.
Folic acid, from fruits and vegetables, plays a role by powerfully
protecting against methanol (formaldehyde) toxicity.
Many common drugs, such as aspirin, interfere with folic acid,
as do some mutations in relevant enzymes.
The majority of aspartame reactors are female.
http://groups.yahoo.com/group/aspartameNM/message/1291
European Food Safety Authority to decide aspartame safety by May:
caffeine diet drinks cause female hypertension, WC Winkelmayer et al,
JAMA 2005.11.09: PubMed lists 50 items for "diet soft drinks" since
2004 Oct.: Murray 2006.01.24
http://groups.yahoo.com/group/aspartameNM/message/1279
all three aspartame metabolites harm human erythrocyte [red blood cell]
membrane enzyme activity, KH Schulpis et al, two studies in 2005,
Athens, Greece, 2005.12.14: 2004 research review, RL Blaylock:
Murray 2006.01.14
http://groups.yahoo.com/group/aspartameNM/message/939
aspartame (aspartic acid, phenylalanine) binding to DNA:
Karikas July 1998: Murray 2003.01.05 rmforall
Karikas GA, Schulpis KH, Reclos GJ, Kokotos G
Measurement of molecular interaction of aspartame and
its metabolites with DNA. Clin Biochem 1998 Jul; 31(5): 405-7.
Dept. of Chemistry, University of Athens, Greece
http://www.chem.uoa.gr gkokotos@...;
K.H. Schulpis inchildh@...; G.J. Reclos reklos@...;
http://groups.yahoo.com/group/aspartameNM/message/1271
combining aspartame and quinoline yellow, or MSG and brilliant blue,
harms nerve cells, eminent C. Vyvyan Howard et al, 2005
education.guardian.co.uk, Felicity Lawrence: Murray 2005.12.21
http://groups.yahoo.com/group/aspartameNM/message/1329
aspartame or MSG affects circadian rhythms in rats, two studies,
P. Subramanian, T. Manivasagam et al 2004:
Murray 2006.04.27
http://groups.yahoo.com/group/aspartameNM/message/925
aspartame puts formaldehyde adducts into tissues, Part 1/2
full text Trocho & Alemany 1998.06.26
Universitat Autònoma de Barcelona : Murray 2002.12.22
http://groups.yahoo.com/group/aspartameNM/message/1316
PubMed abstract: aspartame (methanol becoming formaldehyde) causes
many cancers in rats, Ramazzini Foundation, M Soffritti et al:
Murray 2006.03.06
http://www.ehponline.org/members/2005/8711/8711.html free full text
Environ Health Perspect. 2006 Mar; 114(3): 379-85.
First experimental demonstration of the multipotential carcinogenic
effects of aspartame administered in the feed to sprague-dawley rats.
Soffritti M, Belpoggi F, Esposti DD,
Lambertini L, Tibaldi E, Rigano A.
Cesare Maltoni Cancer Research Center, European Ramazzini
Foundation of Oncology and Environmental Sciences, Bologna, Italy.
The Cesare Maltoni Cancer Research Center of the European
Ramazzini Foundation has conducted a long-term bioassay on
aspartame (APM), a widely used artificial sweetener.
APM was administered with feed to 8-week-old Sprague-Dawley rats
(100-150/sex/group), at concentrations of
100,000, 50,000, 10,000, 2,000, 400, 80, or 0 ppm.
The treatment lasted until natural death, at which time
all deceased animals underwent complete necropsy.
Histopathologic evaluation of all pathologic lesions and of all organs
and tissues collected was routinely performed
on each animal of all experimental groups.
The results of the study show for the first time that APM,
in our experimental conditions, causes
a) an increased incidence of malignant-tumor-bearing animals
with a positive significant trend in males (p </= 0.05)
and in females (p </= 0.01),
in particular those females treated at 50,000 ppm (p </= 0.01);
b) an increase in lymphomas and leukemias
with a positive significant trend in both males (p </= 0.05)
and females (p </= 0.01),
in particular in females treated at doses of
100,000 (p </= 0.01), 50,000 (p </= 0.01), 10,000 (p </= 0.05),
2,000 (p </= 0.05), or 400 ppm (p </= 0.01);
c) a statistically significant increased incidence,
with a positive significant trend (p </= 0.01),
of transitional cell carcinomas of the renal pelvis and ureter and
their precursors (dysplasias) in females treated at
100,000 (p </= 0.01), 50,000 (p </= 0.01), 10,000 (p </= 0.01),
2,000 (p </= 0.05), or 400 ppm (p </= 0.05);
and d) an increased incidence of malignant schwannomas
of peripheral nerves with a positive trend (p </= 0.05) in males.
The results of this mega-experiment indicate that APM
is a multipotential carcinogenic agent,
even at a daily dose of 20 mg/kg body weight,
much less than the current acceptable daily intake. [ 50 mg/kg bw ]
On the basis of these results,
a reevaluation of the present guidelines
on the use and consumption of APM is urgent
and cannot be delayed.
Key words: artificial sweetener, aspartame, carcinogenicity,
lymphomas, malignant schwannomas, rats, renal pelvis carcinomas.
PMID: 16507461 Feb 24 2006 04:49:50
Address correspondence to M. Soffritti, Cesare Maltoni Cancer
Research Center, European Ramazzini Foundation of Oncology and
Environmental Sciences, Castello di Bentivoglio, Via Saliceto, 3,
40010 Bentivoglio, Bologna, Italy. 39-051-6640460
Fax: 39-051-6640223 crcfr@...
We thank the U.S. National Toxicology Program for convening a group
of pathologists at the
National Institute of Environmental Health Sciences
to provide a second opinion for a set of malignant lesions and their
precursors related to aspartame treatment, and for their help in
statistical analysis.
We also thank all of the staff involved in the project.
This research was supported by the European Ramazzini Foundation of
Oncology and Environmental Sciences.
The authors declare they have no competing financial interests.
Received 3 October 2005; accepted 16 November 2005.
http://www.ehponline.org/members/2005/8711/tab1.jpg
[ transcribed to plain text ]
Table 1. Beverages and diet products studied at the CMCRC/ERF:
status of studies.
Study---------------------------No. of bioassays
---Products-------------------------Species---------No. Study status
1 Water in
polyvinyl chloride bottles---------2 rat a--------------2,200 P b
2 Coca-Cola---------------------4 rat a--------------1,999 RP
3 Pepsi Cola----------------------1 rat-----------------400 E
4 Ethyl alcohol--------------------4 rat, mouse a------1,458 P c
5 Sucrose-------------------------1 rat-----------------400 E
6 Aspartame (APM)--------------6 rat, mouse a------4,460 BO, PP d
7 Sucralose (Splenda)-------------1 mouse *-----------760 BO
8 Caffeine-------------------------1 rat-----------------800 E
9 Vitamin A-----------------------5 rat----------------5,100 E
10 Vitamin C----------------------5 rat----------------3,680 E
11 Vitamin E----------------------5 rat----------------3,680 E
12 Feed sterilized by--------------1 rat a---------------2,000 E
gamma radiation
Total-----------------------------36-------------------26,937
Abbreviations:
BO, biophase ongoing
E, in elaboration
P, published
PP, partially published
RP, ready for publication
a, treatment started from embryonic life
b, data from Maltoni et al. (1997)
c, data from Soffritti et al. (2002a)
d, data from Soffritti et al. (2005).
*, data from Soffritti et al. (1992)
Investigations into the metabolism of APM have shown that,
in rodents, nonhuman primates, and humans,
it is metabolized in the gastrointestinal tract
into three constituents --
aspartic acid, phenylalanine, and methanol --
which are absorbed into the systemic circulation (Ranney et al. 1976).
For each molecule of APM,
one molecule of each constituent is produced.
After absorption, they are then used, metabolized, and/or excreted by
the body following the same metabolic pathways
as when consumed through the ordinary diet:
aspartate is transformed into alanine plus oxaloacetate (Stegink 1984);
phenylalanine is transformed mainly into tyrosine and, to a smaller
extent, phenylethylamine and phenylpyruvate (Harper 1984);
and methanol is transformed into formaldehyde and then to formic acid
(Opperman 1984).
*******************************************************
Morando Soffritti 1, Fiorella Belpoggi 1, Davide Degli Esposti 1, Luca
Lambertini 1, Eva Tibaldi 1,
and Anna Rigano 1
1 Cesare Maltoni Cancer Research Center,
European Ramazzini Foundation of Oncology and
Environmental Sciences, Bologna, Italy
Address of the institution:
Cesare Maltoni Cancer Research Center,
European Ramazzini Foundation of Oncology and Environmental Sciences.
Castello di Bentivoglio, Via Saliceto, 3, 40010 Bentivoglio,
Bologna, Italy
+39/051/6640460 Fax +39/051/6640223 crcfr@...
Address correspondence to
Dr. M. Soffritti, M.D., Scientific Director of the Cesare Maltoni
Cancer Research Center,
European Ramazzini Foundation
of Oncology and Environmental Sciences.
Castello di Bentivoglio, Via Saliceto, 3, 40010 Bentivoglio,
Bologna, Italy
+39/051/6640460 Fax +39/051/6640223 crcfr@...
Acknowledgements: A special thanks to the
US National Toxicology Program (NTP)
for convening a group of pathologists at NIEHS
in order to provide a second opinion
for a set of lesions of malignancies and their precursors
related to the APM treatment, and for the help in statistical analysis.
http://groups.yahoo.com/group/aspartameNM/message/1250
aspartame causes cancer in rats at levels approved for humans,
Morando Soffritti et al, Ramazzini Foundation, Italy &
National Toxicology Program
of National Institute of Environmental Health Sciences
2005.11.17 Env. Health Pers. 35 pages: Murray
http://groups.yahoo.com/group/aspartameNM/message/1226
USA National Institutes of Health National Toxicology
Program aids eminent Ramazzini Foundation, Bologna, Italy,
in more results on cancers in rats from lifetime low levels
of aspartame (methanol, formaldehyde), Felicity Lawrence,
www.guardian.co.uk: Murray 2005.09.30
http://groups.yahoo.com/group/aspartameNM/message/1186
aspartame induces lymphomas and leukaemias in rats, full plain text,
M Soffritti, F Belpoggi, DD Esposti, L Lambertini: Ramazzini
Foundation study 2005.07.14: main results agree with their previous
methanol and formaldehyde studies: Murray 2005.09.03
http://groups.yahoo.com/group/aspartameNM/message/1016
President Bush & formaldehyde (aspartame) toxicity:
Ramazzini Foundation carcinogenicity results Dec 2002:
Soffritti: Murray 2003.08.03 rmforall
p. 88 "The sweetening agent aspartame hydrolyzes in the
gastrointestinal tract to become free methyl alcohol,
which is metabolized in the liver
to formaldehyde, formic acid, and CO2. (11)"
Medinsky MA & Dorman DC. 1994; Assessing risks of low-level
methanol exposure. CIIT Act. 14: 1-7.
Ann N Y Acad Sci. 2002 Dec; 982: 87-105.
Results of long-term experimental studies on the carcinogenicity of
formaldehyde and acetaldehyde in rats.
Soffritti M, Belpoggi F, Lambertin L,
Lauriola M, Padovani M, Maltoni C.
Cancer Research Center, European Ramazzini Foundation for Oncology
and Environmental Sciences, Bologna, Italy. crcfr@...
Formaldehyde was administered for 104 weeks in drinking water
supplied ad libitum at concentrations of
1500, 1000, 500, 100, 50, 10, or 0 mg/L
to groups of 50 male and 50 female Sprague-Dawley rats beginning at
seven weeks of age.
Control animals (100 males and 100 females) received tap water only.
Acetaldehyde was administered to 50 male and 50 female
Sprague-Dawley rats beginning at six weeks of age at concentrations of
2,500, 1,500, 500, 250, 50, or 0 mg/L.
Animals were kept under observation until spontaneous death.
Formaldehyde and acetaldehyde were found to produce an increase
in total malignant tumors in the treated groups
and showed specific carcinogenic effects on various organs and tissues.
PMID: 12562630
Ann N Y Acad Sci. 2002 Dec; 982: 46-69.
Results of long-term experimental studies on the carcinogenicity of
methyl alcohol and ethyl alcohol in rats.
Soffritti M, Belpoggi F, Cevolani D,
Guarino M, Padovani M, Maltoni C.
Cancer Research Center, European Ramazzini Foundation for Oncology
and Environmental Sciences, Bologna, Italy. crcfr@...
Methyl alcohol was administered in drinking water
supplied ad libitum at doses of
20,000, 5,000, 500, or 0 ppm to groups of male and female
Sprague-Dawley rats 8 weeks old at the start of the experiment.
Animals were kept under observation until spontaneous death.
Ethyl alcohol was administered by ingestion in drinking water at a
concentration of 10% or 0% supplied ad libitum to groups of male and
female Sprague-Dawley rats; breeders and offspring were included in
the experiment.
Treatment started at 39 weeks of age (breeders), 7 days before mating,
or from embryo life (offspring)
and lasted until their spontaneous death.
Under tested experimental conditions, methyl alcohol and ethyl alcohol
were demonstrated to be carcinogenic for various organs and tissues.
They must also be considered multipotential carcinogenic agents.
In addition to causing other tumors, ethyl alcohol induced malignant
tumors of the oral cavity, tongue, and lips.
These sites have been shown to be target organs in man by
epidemiologic studies.
Publication Types: Review Review, Tutorial PMID: 12562628
*******************************************************
The Comet assay can quickly show whether aspartame or its body
products (methanol, formaldehyde, formic acid -- the same as in
hangovers from dark wines and liquors) are genotoxic:
Murray 2006.05.09
http://groups.yahoo.com/group/aspartameNM/message/1337
Comet assay finds DNA damage from sucralose, cyclamate, saccharin,
aspartame in mice: Sasaki YF & Tsuda S Aug 2002:
Murray 2006.05.08
[ Borderline evidence, in this pilot study of 39 food additives,
using test groups of 4 mice, for DNA damage from for stomach, colon,
liver, bladder, and lung 3 hr after oral dose of 2000 mg/kg
aspartame -- a very high dose.
Methanol is the only component of aspartame that
can lead to DNA damage. ]
http://groups.yahoo.com/group/aspartameNM/message/934
24 recent formaldehyde toxicity [Comet assay] reports:
Murray 2002.12.31
http://groups.yahoo.com/group/aspartameNM/message/961
genotoxins, Comet assay in mice: Ace-K, stevia fine; aspartame poor;
sucralose, cyclamate, saccharin bad: Y.F. Sasaki Aug 2002:
Murray 2003.01.27 [A detailed look at the data] ]
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http://groups.yahoo.com/group/aspartameNM/message/1345
EFSA, European Food Safety Authority says Ramazzini aspartame
cancer study is flawed, while Soffritti is half way through second huge
study, Felicity Lawrence, www.guardian.co.uk: Murray 2006.05.15
http://groups.yahoo.com/group/aspartameNM/message/1339
Obfuscation of the iatrogenic autism epidemic re mercury in kid
vaccines, Kenneth P. Stoller, Pediatrics 2006.05.06;
aspartame toxicity 2005.11.10: Comet assay can test genotoxicity,
EFSA admits ignorance re methanol residues, Murray 2006.05.10
http://groups.yahoo.com/group/aspartameNM/message/1335
Morando Soffritti of Ramazzini Foundation rebuts EFSA AFC critique,
www.laleva.org: Murray 2006.05.05
http://groups.yahoo.com/group/aspartameNM/message/1334
European Food Safety Authority discounts Ramazzini study re many
cancers in 1800 rats fed lifetime doses of aspartame:
Calorie Control Council press release: Murray 2006.05.05
http://www.efsa.eu.int/press_room/press_release/1472_en.html
http://www.efsa.eu.int/science/afc/afc_opinions/1471_en.html
http://www.efsa.eu.int/press_room/media_events/catindex_en.html
http://www.flyonthewall.com/FlyBroadcast/efsa.eu.int/AspartamePressConference/
http://www.efsa.eu.int/science/afc/afc_opinions/1471/afc_op_ej356_aspartame_en1.\
pdf
http://groups.yahoo.com/group/aspartameNM/message/1338
Aspartame: The healthy option? Richard A. Lovett, The New Scientist
2006.05.04: Murray 2006.05.08
http://groups.yahoo.com/group/aspartameNM/message/957
safety of aspartame Part 1/2 12.4.2: EC HCPD-G SCF:
Murray 2003.01.12 rmforall EU Scientific Committee on Food,
a whitewash
http://groups.yahoo.com/group/aspartameNM/message/1045
http://www.holisticmed.com/aspartame/scf2002-response.htm
Mark Gold exhaustively critiques European Commission Scientific
Committee on Food re aspartame ( 2002.12.04 ):
59 pages, 230 references
Alcohol Clin Exp Res. 1997 Aug; 21(5): 939-43.
Endogenous production of methanol after the consumption of fruit.
Lindinger W, Taucher J, Jordan A, Hansel A, Vogel W.
Institut fur Ionenphysik, Leopold Franzens Universitat Innsbruck,
Austria.
After the consumption of fruit, the concentration of methanol in the
human body increases by as much as an order of magnitude.
This is due to the degradation of natural pectin
(which is esterified with methyl alcohol) in the human colon.
[ by bacteria ]
In vivo tests performed by means of proton-transfer-reaction mass
spectrometry show that consumed pectin in either a pure form
(10 to 15 g)
or a natural form (in 1 kg of apples) induces a significant increase of
methanol in the breath (and by inference in the blood) of humans.
The amount generated from pectin (0.4 to 1.4 g) [ 400 to 1400 mg ]
is approximately equivalent to the total daily endogenous production
(measured to be 0.3 to 0.6 g/day) [ 300 to 600 mg ]
or that obtained from 0.3 liters of 80-proof brandy
(calculated to be 0.5 g). [ 500 mg ]
This dietary pectin may contribute to the development
of nonalcoholic cirrhosis of the liver. PMID: 9267548
Alcohol Clin Exp Res. 1995 Oct; 19(5): 1147-50.
Methanol in human breath.
Taucher J, Lagg A, Hansel A, Vogel W, Lindinger W.
Institut fur Ionenphysik, Universitat Innsbruck, Austria.
Using proton transfer reaction-mass spectrometry for trace gas analysis
of the human breath, the concentrations of methanol and ethanol have
been measured for various test persons consuming alcoholic beverages
and various amounts of fruits, respectively.
The methanol concentrations increased from a natural (physiological)
level of approximately 0.4 ppm up to approximately 2 ppm a few hours
after eating about 1/2 kg of fruits,
and about the same concentration was reached
after drinking of 100 ml brandy
containing 24% volume of ethanol and 0.19% volume of methanol.
PMID: 8561283 [ My earlier errors were corrected 2005.07.11:
24 ml means 19 g ethanol,
and 0.19 ml means 0.15 g = 150 mg methanol.
One L diet soda has 61.5 mg methanol in the aspartame molecule,
so 100 ml diet soda has 6.15 mg methanol,
so the brandy has 24.4 times more methanol than diet soda.
A pound of fruit gives about as much methanol as 2 L
(nearly 6 cans) diet soda. ]
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