Brandon Zimmerman's picture
Can you address the link found between genetically modified crops and blood abnormalities including leukemia? I've detailed them here

A:Expert Answer

Anastasia Bodnar with Biology Fortified, Inc., addressed a study that claims to link GM foods with leukemia in this article. Included in her article is an analysis of the study by Dr. David Tribe, senior lecturer in agriculture and food systems/microbiology and immunology at the University of Melbourne.


Here is an excerpt from the article:


“The Organic Consumers Association (among others) has gleefully announced: New Study Links GMO Food To Leukemia (also saved as a PDF). This article by Sayer Ji was originally published on Green Med Info on 12 May 2013. The paper is Hematotoxicity of Bacillus thuringiensis as Spore-crystal Strains Cry1Aa, Cry1Ab, Cry1Ac or Cry2Aa in Swiss Albino Mice by Mezzomo et al, published first in November 2012 then again in March 2013 (more on that later).


“The article states: “Bt toxins are capable of targeting mammalian cells, particularly the erythroid (red blood cell) lineage, resulting in red blood cell changes indicative of significant damage, such as anemia. In addition, the study found that Bt toxins suppressed bone marrow proliferation creating abnormal lymphocyte patterns consistent with some types of leukemia.”


“Except, the article doesn’t actually say that at all. I have a few quick observations, then a rebuttal provided by our own Dr. David Tribe, and I wrap up this latest edition of whack-a-mole with a revelation. There’s a lot more to say about this paper, and hopefully we will learn more as time goes by, but this post is just a fast attempt to help people know that this is not a good paper to be pointing at.”


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