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Mar 29th, 2005, 08:17 AM
Thought this might be useful - am trying to find a defined list. I don't want to be a panic merchant, but we come across carcinogens all the time - UV light is a carcinogen and some of the compounds in my burnt toast this morning :o are carcinogenic but our immune systems usually pick off disfunctional cells. It's when it doesn't that tumours arise. It must be admitted though that we have more contact with carcinogens than ever before in our history (that I know of).

Definition (http://www.ilpi.com/msds/ref/carcinogen.html)

* A carcinogen is a substance that causes cancer (or is believed to cause cancer).

* A carcinogenic material is one that is known to cause cancer.

* The process of forming cancer cells from normal cells or carcinomas is called carcinogenesis.

Additional Info

A known human carcinogen means there is sufficient evidence of a cause and effect relationship between exposure to the material and cancer in humans. Such determination requires evidence from epidemiologic (demographic and statistical), clinical, and/or tissue/cell studies involving humans who were exposed to the substance in question. Obviously, it is unethical to deliberately test potential carcinogens on humans, so "proving" something (in the rigorous scientific sense) to be a carcinogen in humans is a difficult, demanding and lengthy task!

Substances that are reasonably anticipated to be human carcinogens meet any of the following descriptions:

1. There is limited evidence of carcinogenicity from studies in humans. A cause and effect interpretation is credible, but that alternative explanations such as chance, bias, other variables etc. can not be ruled out. Again, science can never prove a hypothesis, only disprove one. Scientific "facts" are established only when a preponderence of the evidence supports a hypothesis and there is 1) no evidence to disprove it and 2) no equally viable (plausible) alternative hypotheses (theories).

2. There is sufficient evidence of carcinogenicity from studies in experimental animals (such as mice or rats), which indicates there is an increased incidence of malignant and/or a combination of malignant and benign tumors (1) in multiple species or at multiple tissue sites, or (2) by multiple routes of exposure, or (3) to an unusual degree with regard to incidence, site, or type of tumor, or age at onset.

3. There is less than sufficient evidence of carcinogenicity in humans or laboratory animals; however, the substance is structurally related to other materials that are either human carcinogens or reasonably anticipated to be human carcinogens.

4. There is convincing relevant information that the material acts through mechanisms that are likely to cause cancer in humans.

A wide variety of information is required to assess carcinogenicity and risks to humans. For example, a substance may cause cancer in laboratory animals, but the mechanism by which this occurs may not occur in humans.

Mar 29th, 2005, 08:22 AM
Carcinogen list (http://www.cancer.org/docroot/PED/content/PED_1_3x_Known_and_Probable_Carcinogens.asp?sitear ea=PED)

I am not sure how useful this will be but these are some of the accepted carcinogens - unfortunately it does not list what substances they are found in or conditions.

Comprehensive listings below.


Mar 29th, 2005, 08:50 AM
some surprising ones there!!.

Mar 29th, 2005, 03:00 PM
Everything causes cancer. Certain things concern me, my aunt has breast cancer and I would not like to get that. But I'm still going to live my life. Sure, I can avoid certain things that may cause cancer but I'm not going to live my life worrying whether or not this computer monitor I'm using is going to give me cancer.

Mar 29th, 2005, 03:21 PM
Deodorants can cause breast cancer (which men can get too!). They have aluminium in them, which blocks the pores and stops the sweat from getting out. Unfortunately this means toxins back up into the breast tissue, which has a carcinogenic effect. I don't think having natural deodorant prevents this happening, unless it works some other way than using aluminium. Check the ingredients, if aluminium or any aluminium compound is listed, that's how it works.

A bit freaky, but hey. As my brother says, everything causes cancer these days. Personally I still use deodorant, reassuringly mine (despite containing aluminium) allows me to sweat a little (not enough to leave patches!) and masks the odour, so maybe it's not that bad for me. Even so, I really can't be bothered to walk around sweating and stinking. What's the point in not having cancer if no one will come near you?


there's plenty of "natural" deodorants that don't contain aluminium. the only ones that i've seen that do are the anti-perspirants. and that makes sense according to what you've said. the anti-perspirants stop sweating altogether, while deodorants simply cover up the smell. i use unscented Tom's of Maine and it works well for me.

Mar 29th, 2005, 07:09 PM
I read in Susun Weed's breast cancer book that wearing a bra increases the chances of breast cancer. Something about lymph ? not getting to drain. After having an itching problem I stopped wearing a bra in August. The problem went away about 98 percent. I wear an undershirt instead.

I've also heard that heating food in plastic containers in the microwave allows organochlorides to leach into food.

Kiva Dancer
Mar 29th, 2005, 11:38 PM
See? I knew there was a reason I didn't like wearing bras. :D

Mar 30th, 2005, 08:31 AM
I think everybody has cancer. A nurse friend of mine went back to nursing after 20 years (when her husband pushed off and left her to raise the kids alone). Anyway, she went into the post mortem area as she did previously. She was quite shocked at the change, and told me that regardless of what a person died of now, just about everyone had cancer.

Mar 31st, 2005, 12:10 PM
Recently things have been pretty heavy emotionaly for me as I have a very close member of my family suffering with a cancer problem.

The Cancer was found in their bladder about 4 years ago and was treated with simple laser work, it was not a cancer that is impossible to irradicate but it had to be monitored on a regular basis.
Since this they have had to have to small laser treatment for very small micro dots that needed removing.

The person in question is in very good personal health, but has lived on a crap diet. They recently went back to hospital because of some inflamation in an area of the bladder the Drs sorted this but the specialist has since said they need to see him again as they need to treat the bladder in different method because they can not keep doing laser treatment.

At the Bristol Vegan Fayre the Bristol Cancer Help Center were their to promote the benifits of veganism and how it can prevent and in some cases clear up cancers.

The person in my family that has this has drunk soya milk for many years now since I told them about the use of Posimatt Step 2 in british cows milk.

I have almost convinced them the benifit of a vegan diet and i think I may want to try it.

I have many articals and information from Bristol Cancer Help Center but if any one has any articals on the benifit of veganism and figting cancer please no matter how small I will be so glad of anything. Please remember I am leaving this info with a never before vegan and they are more up for reading than disscussing it openly yet. I can guide them on nice foods and cooking vegan thats no problem.

Its just articals and proof I need to show them than this will help them.

Thank you all for any help you may be able to give.

Just for the record we have found out that this cancer has come about because the person in question used to drive a huge truck in quarry which has large rubber tyres of course when they climbed in and out of this they were always touching the rubber and then going to loo without first washing hands.

Their is a strong link between rubber oils used in tyre and bladder cancers, many people working for the Avon Rubber Plant in Melksham, Wiltshire have been diognosed with bladder cancers people as young as 30 !!!!

My advice is if you are working on your car or mountain bike with tyres or oils wear those protective latext gloves.



Mar 31st, 2005, 02:00 PM
Yes, I have heard about latex allergies and have met up with some nurses who are allergic to latex gloves.

As a matter of interest has your relative taken cranberry juice, as it is brilliant to ward off bacteria in the bladder as it stops the bacteria sticking to the wall of the bladder. It may help him.
Have you tried Dr Hadwyn Trust for info,?. The Humane Research Trust has a leaflet about cancer and other medical problems. tel,0161 439 8041.Then there is the 'Seriously ill against vivisection, www.siav.org hope this helps.

Mar 31st, 2005, 02:19 PM
sorry to hear of your relatives health problem - im sure lots of us will try for information for you - watch this space.

p.s. tomatoes are excellent for gents prostrate area, the lycopene in them is supposed to be really good.

Mar 31st, 2005, 02:56 PM
check out these two sites snaff, might be something useful:

(in search, type in diet and cancer prevention)

(click on health, there are loads of topics here)

good luck, will post any more i find :) :) :)

Mar 31st, 2005, 04:33 PM
I hope these are of some help!



Mar 31st, 2005, 06:17 PM

I have a friend who was given 6 months to live 3 years ago, she was suffering with breast cancer.

She has written a book which I have a copy of if you would like me to send it to you. I am sure she wouldn't mind answering any questions as I know she goes around Essex giving talks. She became Vegan to fight the cancer, amongst taking various supplements, buying only organic and having various holistic treatments.

She also went to the Bristol Centre and had treatment there.

Aurora xx

Kiva Dancer
Apr 3rd, 2005, 08:27 AM
tomatoes are excellent for gents prostrate area Avocados are good for that, too. :)

Apr 4th, 2005, 11:35 AM
If I had any kind of cancer, or suspected that I may develop it, I would make sure to keep myself as thoroughly dosed up as possible with cannabinoids, found uniquely in the flowers of the cannabis plant, which are potent anti-carcinogens, active against many forms of cancer. Unlike conventional chemotherapeutic agents, cannabinoids are non-toxic and do not damage healthy tissue. They are currently being used by Manuel Guzman in Complutense University, Madrid, to treat brain and skin cancers. See the cannabis thread:


I find it amazing that a plant which produces seeds containing the perfect balance of proteins and omega fatty acids for human health, also produces in its flowers, such beneficial, non-toxic medicine with many therapeutic effects.

Here's a link to a PDF of 'Cannabinoids:Potential Anticancer Agents' by Manuel Guzman.


Also, since sometimes the language used in scientific papers can be hard to follow, here's a link to a very useful medical dictionary:


Comes in handy for any medical or scientific term you don't understand!

Apr 4th, 2005, 02:48 PM
Interesting article, thanks Kokopelli. Will be a real boon when they find the biochemical pathway that leads to the antitumor activity. The psychoactive element seems to be avoidable while still giving palliative relief which was something I was curious about. It seems possible to give pain relief, inhibit tumors, increase appetite without the burden of the psychoactive effects or toxic side effects. There is also suggestion of preventing the crossing of the blood-brain barrier, which removes the problem altogether.

Apr 4th, 2005, 07:46 PM
Since that paper was published, Manuel Guzman has reported successfully using THC for treating human patients with malignant glioma, one of the most malignant cancers, for which there has not been a cure, only palliative treatments. I believe he has succeeded in reducing the size of the tumours, but this was barely reported on BBC News. He has also been using cannabinoids for skin cancer. If I had cancer, I'd definitely get in touch with him.

I've got a lot more studies, I'll post them on the cannabis thread eventually.

Medicinal users of cannabis tend to develop tolerance to the psychoactive effects of THC in time anyway.

I think those effects can often be exaggerated by cultural expectations, as well. If you read Victorian accounts of hashish experimentation, they are usually very lurid, with detailed hallucinatory stories, but it seems like modern people don't have those effects at all. And it's well known that Queen Victoria was prescribed cannabis for period pains, but apparently she remained sane!

Apr 4th, 2005, 08:10 PM
Did you notice the part which says:

"Cannabinoids are usually well tolerated in animal studies and do not produce the generalised toxic side-effects of conventional chemotherapeutic agents. For example, in a 2-year administration of high oral doses of THC to rats and mice, no marked histopathological alterations to the brain or other organs were found. Moreover, THC treatment tended to increase survival and lower incidence of primary tumours."

And it's the anti-cancer medicine anyone could grow for themselves, if it wasn't illegal :)

Apr 16th, 2005, 10:34 PM
Here's a link to the website of David Hadorn, M.D., Ph.D.


He has conveniently created a compendium of studies of cannabis and cancer, amongst other things.

He classifies the studies into:

Studies Showing An Anti-Cancer Effect
Inconclusive Studies
Studies Showing a Pro-Cancer Effect

and concludes:

'after reviewing these abstracts, I believe that the preponderance of clinically relevant and methodologically sound evidence supports an anti-cancer effect of cannabinoids.'

May 10th, 2005, 02:15 PM
If you read “Prof Jane Plant” “You are what you eat,” she says” if you are a diabetic the hospital will refer you to the dietician and they will give you a diet sheet, its same with a heart attach victim .But if you ask in oncology for a diet sheet to help you against cancer they will look at you as if you have asked for some thing so strange??????
I had to read and go on line and do my own research to sort out my diet!
Toni :0)

May 29th, 2005, 08:13 AM
From http://news.bbc.co.uk/1/hi/health/3149062.stm

Red meat 'cancer threat'

Eating red meat introduces a potentially dangerous molecule into the body tissues, according to researchers.

Scientists from the University of California in San Diego believe it could cause heart disease and cancer by triggering a harmful immune response.

Humans cannot produce the molecule - a type of sugar - but it occurs at high levels in lamb, pork and beef.

The research is published in the Proceedings of the National Academy of Sciences.

Human volunteers

Several studies have associated red meat diets with cancer and heart disease.

But these have focused on saturated fats and chemicals produced during the cooking process.

The new research focuses on a sugar called N-glycolylneuraminic acid (Neu5Gc).

There is a little more on the link between eating meat, too much B12 and cancer here. (http://www.veganforum.com/forums/showthread.php?p=54628#post54628) There is also a known link between too low B12 intake and some cancer types.

adam antichrist
Jun 16th, 2005, 09:44 AM
Study released today shows that meateaters eating more than 160g per day (bit more than half the average steak) increases the risk of bowel cancer (http://news.bbc.co.uk/1/hi/health/4088824.stm) by 35%.

There is further evidence that low carb diets increase the risk of such cancers as they limit fibre intake.

So that's what killed Aitkins!

Jun 16th, 2005, 10:10 AM
Interesting adam A, but there is so much misleading information around. My youngest son died of cancer of the colon in 1991, at age 38, and at the time, his cancer specialist told him, and me, that it is 'familial', though I knew of nobody on either side of the family with it. Later I read an article, and showed the specialist, where it said that stress can cause colon cancer, and my poor son was certainly under heaps of stress. Then it was said to come from diet, such as mentioned in that bbc article. As vegans we ought not to be blase and think that we can't get it, or any other unpleasant stuff.

I feel pretty sure that many elements in the environment are not doing much good to our bodies, so we just live the best way we can.

Jun 17th, 2005, 06:48 AM
So sorry Eve about your loss :( .

My uncle died of bowel cancer and he ate so much meat in a day, mostly red and with fat as well. Interestingly his wife had breast cancer as well a few years before him. I am sure it was diet related as they drank dairy milk a lot too.