Sustainable Pulse
GMO Evidence GMO Seralini GMO Judy Carman

Critics answered

Criticism: Sprague-Dawley rats get tumours when food intake is unrestricted

Summary answer:
The rats in Séralini’s study had unrestricted access to food and water, but so did the rats in Monsanto’s 90-day studies on GM foods, and so do most humans in their daily lives. So this aspect of Séralini’s
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By |November 29th, 2012|Critics answered|0 Comments

Criticism: Séralini used an insufficient number of controls

Summary answer:
Séralini’s control groups were the same size as each treatment dose group, in line with standard scientific practice. It is not good scientific practice to introduce extra irrelevant “reference” control groups, though Monsanto has routinely done this in
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By |November 29th, 2012|Critics answered|0 Comments

Criticism: No food intake data is presented, so we don’t know the dose of toxins ingested

Summary answer:
Séralini measured food intake more often than industry studies on GM foods and the absence of data in his published paper does not invalidate the findings observed. (more…)

By |November 29th, 2012|Critics answered|0 Comments

Criticism: Toxic effects did not follow a linear dose-response pattern

Summary answer:
Many toxins, especially those that affect the hormonal system (these include Roundup), have nonlinear dose-response patterns. Scientists have published papers about nonlinear dose-response patterns since the 1990s, but industry and some risk assessment bodies cling to the outdated
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By |November 29th, 2012|Critics answered|0 Comments

Criticism: Outcomes were sex-specific, e.g. the majority of tumours were found in females

Summary answer:
Sex-specific toxic effects are well documented in the scientific literature, including in a study on Roundup toxicity in rats and in animal studies on GM foods. Such effects are to be expected when the hormonal system is involved.
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By |November 29th, 2012|Critics answered|0 Comments

Criticism: No mechanism for the effects observed has been established

Summary answer:
There is no requirement in any regulatory system to establish mechanism of action for a toxin before regulatory action can be taken and there is no burden of proof on scientists who find toxic effects to establish a
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By |November 29th, 2012|Critics answered|0 Comments

Criticism: There was no good reason for Séralini to test these doses of GM NK603 maize and Roundup

Summary answer:
Regarding NK603 maize, Séralini used the same two doses as Monsanto used in its 90-day study and added a third dose, which is necessary to draw any conclusions about dose response in relation to any harmful effects. Regarding
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By |November 28th, 2012|Critics answered|0 Comments

Criticism: Séralini’s study is inadequate and should be dismissed

Summary answer:
No study is perfect, but Séralini’s is far stronger than the 90-day studies carried out by industry for regulatory authorization of GM foods. It is unacceptable that these studies are accepted as proof of safety for GM foods
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By |November 27th, 2012|Critics answered|0 Comments

Double standards used to evaluate GMO safety tests

Source: Then, C. (2012). The European Food Safety Authority: Using double standards when assessing feeding studies. Testbiotech. http://www.testbiotech.de/node/725

By |November 25th, 2012|Critics answered|1 Comment

Critics answered: Conclusion

At present there are no internationally agreed mandatory guidelines on how GM crop animal feeding safety trials should be conducted. Although OECD guidelines for chemical safety testing are a reasonable staring point, there is an urgent need for internationally
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By |November 25th, 2012|Critics answered|1 Comment
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