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aelephant comments on Organic food, conventional food - Less Wrong Discussion

7 Post author: NancyLebovitz 14 June 2012 03:25PM

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Comment author: aelephant 25 September 2012 10:26:54AM 1 point [-]

A new study just came out that seems relevant: Long term toxicity of a Roundup herbicide and a Roundup-tolerant genetically modified maize

From a press release:

The study involving 100 female rats and 100 male rats were split into groups and fed different amounts of either Roundup-resistant corn, Roundup herbicide or both, over two years. There was also a control group, which was fed regular corn a nd plain water.

Up to 50 per cent of males fed GM corn or Roundup and 70 per cent of females died prematurely, compared with only 30 per cent and 20 per cent in the control group, the study found. And overall, rats fed GM corn or Roundup developed two to three times more tumours.

Full text of the study can be found here: http://xgmo.files.wordpress.com/2012/09/toxic-gmo-maize-roundup-final-paper.pdf

Comment author: NancyLebovitz 01 October 2012 02:35:14PM *  1 point [-]

Thank you very much!

This looks as though Monstanto's GMO corn could be very dangerous, but I'm not really qualified to judge the study-- for example, what if the strain of rats is unusually vulnerable?

Edited to add: Yeah, tumor-prone rats, and since the 200 rats were divided into 10 groups, small sample sizes. Still, the effects were pretty large.

Orac: The study is nonsensical.

Would other people here care to take a look at that study?

Also, I'm still concerned that lifespan (or even multigenerational) studies are so rare.

Comment author: aelephant 07 October 2012 11:34:15PM 0 points [-]

Thanks for posting the link to Orac. I didn't know he was still posting regularly there. I'm excited to read his dissection of the study when I have some spare time.

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