4

votes

Should I eat less than 70g red meat to prevent bowel cancer?

Commented on October 03, 2014
Created February 25, 2011 at 8:45 PM

The UK Government today issued health advice to eat less red meat to reduce cancer risk. The new advice recommends eating no more than 70g a day.

http://www.bbc.co.uk/news/health-12571576

Are you paleo folk concerned?

80da9f79e2d79978130925702d4c6092

(105)

on January 06, 2012
at 07:43 AM

that's a sample size of one. just sayin'.

2ab6415f5f20b8fe1d34a94c7be85e6a

on June 01, 2011
at 06:22 AM

hahaha very nice

76f3ead3aa977d876bcf3331d35a36e9

(4620)

on March 17, 2011
at 03:23 PM

AWESOME answer.

E35e3d76547b18096a59c90029e7e107

(15613)

on March 17, 2011
at 09:26 AM

Agreed that I'd rather hear some hard facts, rather than swift dismissals. What's interesting about the report? It's important to realise that they're not proposing a reduction in meat based on new evidence, just rehashing their old guidelines on the basis that it *might* cause colon cancer, after considering (and dismissing) the iron-deficiency angle.

186b8011a1572ec5b3ac68f5a7a72d2d

(160)

on February 26, 2011
at 11:49 AM

So true about the media's interpretation of science - Ben Goldacre and his book Bad Science taught me loads about this http://www.badscience.net/

C61399790c6531a0af344ab0c40048f1

on February 26, 2011
at 09:33 AM

I wouldn't consider ground beef processed - it's just chopped up. To me processed means had unnatural stuff done to it - usually in a lab to make it more profitable.

C61399790c6531a0af344ab0c40048f1

on February 26, 2011
at 09:31 AM

I've had a quick scan and the actual study comes to no solid conclusions at all. Also it uses the phrase 'red and processed meat' in other words it makes no distinction between them.

39a1a0bc7855c084ac59df60fdf9c0dd

(1505)

on February 26, 2011
at 04:29 AM

I dont worry about red meat per se, but industrial, grain-fed beef does cause me concern. I have to think pastured, grass-fed and, of course, organic beef is entirely different for a bunch of reasons - and is really good for us!

Efc949694a31043bfce9ec86e8235cd7

(970)

on February 25, 2011
at 11:49 PM

Processed as in ground beef, or as in chemical additives like nitrites and grain-based fillers in sausage?

Efc949694a31043bfce9ec86e8235cd7

(970)

on February 25, 2011
at 11:47 PM

If one has excess iron, then giving blood frequently might be of help. "To know test thyself is to know thyself.."

B124653b19ee9dd438710a38954ed4a3

(1634)

on February 25, 2011
at 11:27 PM

Europe and the UK have kept there love for fat longer than the US. I'm thankful for that. But the fat and no red meat garbage is finally making it's way across the pond. Now to eat my lamb.

1acc4ee9381d9a8d998b59915b3f997e

(2099)

on February 25, 2011
at 09:12 PM

I'm reminded of the words of an old song "...he can't even run his own life, I'll be damned if he'll run mine..."

95eda9fa0cec952b482e869c34a566b6

on February 25, 2011
at 09:01 PM

Yes, I agree Helen, the nannying bureaucrats are up to their ears in it. All governments should stay away from giving dietary advice.

6670b38baf0aae7f4d8ac2463ddc37c0

(3946)

on February 25, 2011
at 08:53 PM

I agree with Helen.

1acc4ee9381d9a8d998b59915b3f997e

(2099)

on February 25, 2011
at 08:48 PM

Since when is the government...any goverment...not entirely full of shit? And no, I am not concerned.

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12 Answers

14
F9a0b72f38860d7601afd5a45bb53394

(3618)

on February 25, 2011
at 09:06 PM

Studies show the number one cause of death is being born. The number two cause of death is blindly following everything your government tells you to do.

2ab6415f5f20b8fe1d34a94c7be85e6a

on June 01, 2011
at 06:22 AM

hahaha very nice

10
Medium avatar

(12379)

on February 25, 2011
at 09:06 PM

I followed the article to a study and then to the original: http://www.sacn.gov.uk/pdfs/sacn_iron_and_health_report_web.pdf

It is not a causal link from red meat to cancer per se, its a link from iron to bowel cancer. The media is notoriously bad at reading scientific articles - and just pulling out what they want.

186b8011a1572ec5b3ac68f5a7a72d2d

(160)

on February 26, 2011
at 11:49 AM

So true about the media's interpretation of science - Ben Goldacre and his book Bad Science taught me loads about this http://www.badscience.net/

C61399790c6531a0af344ab0c40048f1

on February 26, 2011
at 09:31 AM

I've had a quick scan and the actual study comes to no solid conclusions at all. Also it uses the phrase 'red and processed meat' in other words it makes no distinction between them.

Efc949694a31043bfce9ec86e8235cd7

(970)

on February 25, 2011
at 11:47 PM

If one has excess iron, then giving blood frequently might be of help. "To know test thyself is to know thyself.."

7
9d43f6873107e17ca4d1a5055aa7a2ad

on February 25, 2011
at 08:48 PM

Colon cancer has complex causes that researchers haven't tangled out. Many of these studies are based on fallible questionnaires. What seems clear is that gut microbiota play a huge role. How many people have healthy gut microbiota? Not many.

ALso, the role of insulin "Substantial evidence indicates that hyperinsulinemia may play an important role in colorectal cancer " http://cebp.aacrjournals.org/content/14/1/138.full

6
66e6b190e62fb3bcf42d4c60801c7bf6

on February 25, 2011
at 09:08 PM

i'm actually, concerned for the people who actually listen to their gov't or most doctors when it comes to their health.

growing up, i thought my grandfather was off his rocker because he ate much differently than the rest of us- most here would consider him about 85% paleo- and hadn't seen a doctor or had pill since 1948. my grandfather died last october at 85 years old. at his death he was at about 12% bodyfat and still strong as a mule. he died from what we think was pneumonia in his sleep and actually drove by himself from atlanta the day before he passed. so yeah, i think i'll stick by my grand dad's formula and die like the animals in the wild do- suddenly and quickly at a ripe age.

his favorite quote: "those doctors will kill you!"

80da9f79e2d79978130925702d4c6092

(105)

on January 06, 2012
at 07:43 AM

that's a sample size of one. just sayin'.

4
Be1dbd31e4a3fccd4394494aa5db256d

(17969)

on March 17, 2011
at 04:46 AM

Yeah this stuff is bunk and equivocates all over the place.

  1. Processed vs. Fresh. As has been stated, processed seems to have a correlation (although not necessarily causation) but many show that fresh meat does not.

  2. Conventional vs. Grassfed (grassfed is massively protective due to high CLA content) http://www.ncbi.nlm.nih.gov/pubmed/20143104

  3. Burnt and carcinogenic Vs. properly-cooked. I can find studies where cooking methods made the difference between association and inverse correlation http://www.ncbi.nlm.nih.gov/pubmed/21338220

edit: now study, strong inverse correlation for baked red meat http://www.ncbi.nlm.nih.gov/pubmed/21364608 Certainly not supportive of this hypothesis. If all you are going to base a belief on is correlative data, then at least acknowledge the massive holes in the correlative data. But better to just adhere to the scientific method.

  1. Confounding factors, dude! Everyone already thinks it kills you dead with heart disease so the most health-conscious people (other than paleos which is a negligible fraction of any population) will be eating the least and the least health-conscious people will be eating the most. But there are other differences between these populations so we can't really use them. I call this the health-halo/death-sickle effect. If you put a death-sickle mark on a food you create a self-fulfilling prophecy where the uber-righteous health-food-store-propaganda crowd avoid something and you create your own statistic.

SAYING CORRELATION IS CAUSATION WHEN IT COULD NEVER POSSIBLY BE EVEN CLOSE MAKES YOU LOOK LIKE A BIASED PROPAGANDIST OR AN INCOMPETENT CHARLATAN.

Whew. Heh.

  1. Heme iron? Most people are iron-deficient unless they take iron supplements. I don't take iron supplements but I sure as hell has to have anemia. In either case 200 whopping grams of ground beef contains only 30% of the RDA http://nutritiondata.self.com/facts/beef-products/8000/2

Jaime Scott (http://thatpaleoguy.blogspot.com/2011/02/carnosine-colons-and-cancer.html) has an excellent article showing that the carnosine in meat (found nowhere else in nature) protects against iron-hydrogen peroxide-mediated DNA damage. That-is-important. He also has a sweet post reviewing some propaganda evidence somewhere in that vast collection of gems he has.

  1. You know most of you are right to just say "bleh this is nonsense look at the Inuit, etc" although I would prefer to see more ruthless dissection of this stuff. But really, look at all of the hunter-gatherers eating meat who never had any of these modern diseases. As Sean Croxton says "You don't get new diseases from old foods". The Inuit back in their uber-carnivore days got their bums checked and they wee squeaky clean even in old age. Can Dr. Oz and his uber-virtuous vegetarian diet say that?

Ah but the government says it is so so apparently we are all doomed. sniff sniff I'm going to miss you guys. I hope I die before you all so I don't have to watch you in pain. I had better eat MORE meat to make sure I die sooner. Farewell paleohacks.

76f3ead3aa977d876bcf3331d35a36e9

(4620)

on March 17, 2011
at 03:23 PM

AWESOME answer.

Medium avatar

on October 03, 2014
at 10:36 AM

Your study and research is commendable, thanks a lot for sharing this information.

4
425aa4bfb79556ed50ea693c3edd7e13

(609)

on March 17, 2011
at 12:28 AM

Most of the answers here so far are:

  1. they don't know what they're talking about
  2. you don't trust the govt, do you?
  3. misc. homilies
  4. this (silly/wrong/...) again?

Interesting.

On the other hand, the link above ( http://www.sacn.gov.uk/pdfs/sacn_iron_and_health_report_web.pdf ) is excellent and worth a read.

E35e3d76547b18096a59c90029e7e107

(15613)

on March 17, 2011
at 09:26 AM

Agreed that I'd rather hear some hard facts, rather than swift dismissals. What's interesting about the report? It's important to realise that they're not proposing a reduction in meat based on new evidence, just rehashing their old guidelines on the basis that it *might* cause colon cancer, after considering (and dismissing) the iron-deficiency angle.

3
0adda19045a3641edac0008364b91110

(1146)

on February 25, 2011
at 09:36 PM

Guess I'll eat my pound of meat straight to the grave.

3
Medium avatar

on February 25, 2011
at 09:14 PM

While it's true that excessive (in excess of what you need for structural repair etc.) protein consumption and the accompanying ammonia production during deamination is toxic, it's certainly not what causes colon cancer. The nitrites and nitrates in processed meats that convert into nitrosamines could definitely cause it however. Once again, the more you create food monoliths like "Meat" and "Carbs" etc. the more you miss out on the huge amounts of nuance and variation that occur between different types and sources.

2
64433a05384cd9717c1aa6bf7e98b661

(15236)

on February 25, 2011
at 08:54 PM

that's 2.5 oz, and completely insane! I have no worry about eating 8-10oz /day, but that's just my opinion.

1
Cbda678b2a6bf0537d8c4ea0ce8aa9ad

(4319)

on February 25, 2011
at 10:21 PM

This again....?

0
9f9fa49265e03ddd2bf2bba5477a556b

(3184)

on February 25, 2011
at 09:08 PM

Really, they're going with the meat=cancer thing again?

-1
9839e64e26e44d6d0399e7c19726ead7

on February 25, 2011
at 08:54 PM

I think that leans more toward processed meats. I stay away from any red meat except lean meat straight from the meat market.

C61399790c6531a0af344ab0c40048f1

on February 26, 2011
at 09:33 AM

I wouldn't consider ground beef processed - it's just chopped up. To me processed means had unnatural stuff done to it - usually in a lab to make it more profitable.

Efc949694a31043bfce9ec86e8235cd7

(970)

on February 25, 2011
at 11:49 PM

Processed as in ground beef, or as in chemical additives like nitrites and grain-based fillers in sausage?

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