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Processed meats as bad as cigarettes: bad reporting on good science

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Re: Processed meats as bad as cigarettes: bad reporting on good science

#31
post #4

My first thought was that the report is only talking about rectal and colon cancers, so yes diet might affect them as much as (or even more than) smoking. But that really isn't even close to to being a good comparison when discussing overall effect of risk factors: talking about the effect of smoking while only counting damage to the bottom end of the digestive system is like talking about the effect of drink driving…

Exactly! I'm always disappointed by reporting on scientific research; reading the research helps, but how many people are going to do that? A lot of people will probably change their diets based on this research, assuming that eating meat is as bad as smoking.

why stop eating meat? sounds like i should start smoking.

Re: Processed meats as bad as cigarettes: bad reporting on good science

#32

My first thought was that the report is only talking about rectal and colon cancers, so yes diet might affect them as much as (or even more than) smoking. But that really isn't even close to to being a good comparison when discussing overall effect of risk factors: talking about the effect of smoking while only counting damage to the bottom end of the digestive system is like talking about the effect of drink driving…

Sorry, guys, but you are all wrong. WHO is a huge and difficult body to get agreements from. After years and 800 studies, they decided today to label processed meats as carcinogens.

Btw, 15% of lifelong smokers get lung cancer whereas 15-19% of meat-eaters get some sort of cancer (mainly, colorectal, prostate and breast).

I can appreciate that this is a surprise, but the data has been there for more than a decade.

Re: Processed meats as bad as cigarettes: bad reporting on good science

#33
post #25
post #21

Earlier quoted context omitted.

It's a shame you trivialise the risk. :-/ Skin cancer is very common, and kills many people. People absolutely should be careful about the amount of sunlight they expose themselves to.

Sunscreen is also carcinogenic. Vitamin D deficiency is also harmful. And staying indoors with little exercise leads to a whole host of other conditions.

I understand that you find yourself on the side of smokers, trying to justify your habits. But this new report is still very significant to people having long, energetic and less painful lives.

Re: Processed meats as bad as cigarettes: bad reporting on good science

#34
post #19

My first thought was that the report is only talking about rectal and colon cancers, so yes diet might affect them as much as (or even more than) smoking. But that really isn't even close to to being a good comparison when discussing overall effect of risk factors: talking about the effect of smoking while only counting damage to the bottom end of the digestive system is like talking about the effect of drink driving…

From what I've read on /r/science eating 100g of the specified meats daily increases your risk of certain cancers by ~20%. Compare with smoking, which increases the risk of lung cancer by 1,000-1,500%

Here are some actual studies (impact factor between 7.5 to 17) showing the connection between meat and cancer. This was probably part of the 800 studies that the WHO used to make its decision.

http://www.ncbi.nlm.nih.gov/pubmed/24606898

http://www.ncbi.nlm.nih.gov/pubmed/21422422

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2121650/

http://www.ncbi.nlm.nih.gov/pubmed/23169929

http://share.kaiserpermanente.org/article/high-fat-dairy-pro...

http://www.ncbi.nlm.nih.gov/pubmed/22342103

http://www.ncbi.nlm.nih.gov/pubmed/14585259

http://www.ncbi.nlm.nih.gov/pubmed/19279082

Re: Processed meats as bad as cigarettes: bad reporting on good science

#35

My first thought was that the report is only talking about rectal and colon cancers, so yes diet might affect them as much as (or even more than) smoking. But that really isn't even close to to being a good comparison when discussing overall effect of risk factors: talking about the effect of smoking while only counting damage to the bottom end of the digestive system is like talking about the effect of drink driving…

Sorry, guys, but you are all wrong. WHO is a huge and difficult body to get agreements from. After years and 800 studies, they decided today to label processed meats as carcinogens. Btw, 15% of lifelong smokers get lung cancer whereas 15-19% of meat-eaters get some sort of cancer (mainly, colorectal, prostate and breast). I can appreciate that this is a surprise, but the data has been there for more than a decade.

You haven't established that cancer in meat eaters is largely caused by eating meat, whereas it is quite clear that overall cancer rate drastically increases in smokers.

In fact, while vegetarian diets do reduce the risk of cancer, the difference is by comparison modest - the overall risk of cancer in vegetarians is ~10% lower.

Re: Processed meats as bad as cigarettes: bad reporting on good science

#36

My first thought was that the report is only talking about rectal and colon cancers, so yes diet might affect them as much as (or even more than) smoking. But that really isn't even close to to being a good comparison when discussing overall effect of risk factors: talking about the effect of smoking while only counting damage to the bottom end of the digestive system is like talking about the effect of drink driving…

Sorry, guys, but you are all wrong. WHO is a huge and difficult body to get agreements from. After years and 800 studies, they decided today to label processed meats as carcinogens. Btw, 15% of lifelong smokers get lung cancer whereas 15-19% of meat-eaters get some sort of cancer (mainly, colorectal, prostate and breast). I can appreciate that this is a surprise, but the data has been there for more than a decade.

This is a perfect example of confusing correlation with causation.

Re: Processed meats as bad as cigarettes: bad reporting on good science

#37
The first line of the Guardian's article is:

"Bacon, ham and sausages rank alongside cigarettes as a major cause of cancer, the World Health Organisation has said, placing cured and processed meats in the same category as asbestos, alcohol, arsenic and tobacco."

Is that correct? If the WHO did indeed put these all into the same category, then I'm not sure this article is at fault. Should the author of this post instead take issue with how the WHO categorized these things?

Re: Processed meats as bad as cigarettes: bad reporting on good science

#38
"Processed meat was classified as carcinogenic to humans (Group 1), based on sufficient evidence in humans that the consumption of processed meat causes colorectal cancer."

http://www.iarc.fr/en/media-centre/pr/2015/pdfs/pr240_E.pdf

and here you find tobacco:

https://en.wikipedia.org/wiki/List_of_IARC_Group_1_carcinoge...

So processed meat IS ranking next to tobacco according to IARC.

Re: Processed meats as bad as cigarettes: bad reporting on good science

#39
post #23

Earlier quoted context omitted.

Is it really that bombastic? Lot of people are smoking and will readily justify it with anecdotal evidance proving that smoking isn't really that bad at all - "you know there was this 105 year old Japanese guy and they asked him how he got that old and he said he stopped smoking at the age of 99 ..." Furthermore - people need those "comparisons" - only few will change their behavior based on purely statistical reason…

The WHO report tells us that the quality of the evidence is very good, which is why red meat and processed red meat have this new classification. It doesn't talk about how strong the cancer-causing effects of red meat and processed meat are. They are nothing like as risky as cigarettes. We know that cigarettes are very harmful.

"Processed meat was classified as carcinogenic to humans (Group 1), based on sufficient evidence in humans that the consumption of processed meat causes colorectal cancer."

http://www.iarc.fr/en/media-centre/pr/2015/pdfs/pr240_E.pdf

and here you find tobacco:

https://en.wikipedia.org/wiki/List_of_IARC_Group_1_carcinoge...

So processed meat IS ranking next to tobacco according to IARC.

Re: Processed meats as bad as cigarettes: bad reporting on good science

#40
post #21
post #3

Also worth noting: The same "known carcinogens" list also includes birth control pills and sunlight. Not all carcinogens should be avoided.

It's a shame you trivialise the risk. :-/ Skin cancer is very common, and kills many people. People absolutely should be careful about the amount of sunlight they expose themselves to.

I don't mean to trivialize the risk; merely to point out that there are things which, while carcinogens, should not be avoided absolutely. The key is risk management, not risk avoidance; just as avoiding sunlight entirely would tend to greatly increase the risk of obesity and related metabolic conditions, someone who eats bacon is likely to be at lower risk than someone who eschews bacon but instead eats lots of carbohydrates.
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