Ethan Kessler: There’s nothing dangerous or bad about the principle of GM foods and crops.
One of our Skepti-Forum members, Ethan Kessler, provides several sources countering many of the common misconceptions we often see shared around the Internet condemning GMOs.
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In general, there’s nothing dangerous or bad about the principle of GM foods and crops.
Genetically modified crops are not killing the honey bees:
- http://www.ncbi.nlm.nih.gov/pubmed/22194811
- http://www.ncbi.nlm.nih.gov/pubmed/23533634
- http://www.ncbi.nlm.nih.gov/pubmed/24039838
- http://www.ncbi.nlm.nih.gov/pubmed/18183296
- http://www.ncbi.nlm.nih.gov/pubmed/22868904
- http://www.ncbi.nlm.nih.gov/pubmed/22364780
In addition, Monarch butterflies are not harmed by GM crops:
Overall, “The risks potentially posed by transgenic plants, especially Bt crops, to the environment have been extensively assessed worldwide over the past 10 years, and no scientific evidence has shown that the cultivation of Bt crops has caused sustained environmental harm to communities of soil organisms, such as nematodes, earthworms, collembolans or mites”
In order for the genetically engineered (GE) crops to be successful, a reduction in biodiversity is to be expected. Still, according to a review of 1,783 research papers, “On the other hand, higher reductions on biodiversity is generally expected with non-GE crops and herbicide/insecticide applications, because the chemicals used are often more toxic and persistent in the environment”
- http://www.ncbi.nlm.nih.gov/pubmed/24041244
- http://www.geneticliteracyproject.org/wp/wp-content/uploads/2013/10/Nicolia-20131.pdf
Ultimately, most studies find that GM foods don’t have a significant impact on animal health:
- http://www.agbioworld.org/biotech-info/articles/biotech-art/peer-reviewed-pubs.html
- http://www.ncbi.nlm.nih.gov/pubmed/19011971
- http://www.ncbi.nlm.nih.gov/pubmed/19073230
- http://www.ncbi.nlm.nih.gov/pubmed/18787312
- http://www.ncbi.nlm.nih.gov/pubmed/17050059
- http://www.ncbi.nlm.nih.gov/pubmed/21967780
- http://www.ncbi.nlm.nih.gov/pubmed/17933942
- http://www.ncbi.nlm.nih.gov/pubmed/18029807
- http://www.ncbi.nlm.nih.gov/pubmed/24312218
- http://www.ncbi.nlm.nih.gov/pubmed/15570744
- http://www.ncbi.nlm.nih.gov/pubmed/22250399
- http://www.ncbi.nlm.nih.gov/pubmed/22155268
- http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3531449
Specifically, GM foods do not affect the reproductive system in animals:
- http://www.ncbi.nlm.nih.gov/pubmed/23828972
- http://www.ncbi.nlm.nih.gov/pubmed/24012644
- http://www.ncbi.nlm.nih.gov/pubmed/24309144
- http://www.ncbi.nlm.nih.gov/pubmed/15053558
A detailed review concluded that DNA from GM food cannot be incorporated into our DNA, and that the proteins encoded by the genes inserted into GM crops are not toxic or allergenic:
- http://www.geneticliteracyproject.org/wp/wp-content/uploads/2013/10/Nicolia-20131.pdf
- http://www.ncbi.nlm.nih.gov/pubmed/24041244
Just to be safe, “pre-screening of transgenic proteins through bioinformatic analyses contributes to avoid the introduction of potentially toxic, allergenic or bioactive proteins into food and feed crops”
- http://www.geneticliteracyproject.org/wp/wp-content/uploads/2013/10/Nicolia-20131.pdf
- http://www.ncbi.nlm.nih.gov/pubmed/24041244
Indeed, GMOs are highly regulated – possibly more so than conventional food products. As concluded by 14 different Italian scientific societies (translated by Google Translate), “GMOs are regulated by a regulatory framework that is unmatched in the food and therefore appear to be more controlled than any other food product… GMOs on the market today, having successfully passed all the tests and procedures necessary to authorization, are to be considered, on the basis of current knowledge, safe to use for human and animal consumption”
Food acquired from GM crops have not affected the health of the world-wide population, even after 15 years of consumption by millions of people:
Here’s what the International Seed Federation has to say, “The development of GM crops has benefited farmers, consumers and the environment… Today, data shows that GM crops and foods are as safe as their conventional counterparts: millions of hectares worldwide have been cultivated with GM crops and billions of people have eaten GM foods without any documented harmful effect on human health or the environment”
Despite what some folks say, many independent research groups have researched GMOs, and their conclusions are not anti-GMO. Even the European Union declared, “The main conclusion to be drawn from the efforts of more than 130 research projects, covering a period of more than 25 years of research, and involving more than 500 independent research groups, is that biotechnology, and in particular GMOs, are not per se more risky than e.g. conventional plant breeding technologies”
Broadly speaking, genetic modification is nothing new.
While many people think of crossbreeding as natural, it is still – at its core – genetic splicing. Like it or not, hybridization changes the DNA. Name one crop that has never been modified in any way, by humans, in the history of us being farmers. Nearly all foods found in supermarkets and even the local organic farmer’s market have been highly genetically manipulated to produce the most desirable traits.
The only difference is that when it’s done in a lab, we know exactly what’s happening at the genetic level (especially for species where the entire gene code has been sequenced), and are actually more likely to end up with the exact results we want.
It’s unreasonable to argue that genetic engineering is in any way more harmful when the opposite is more likely to be true. With modern genetic engineering, single genes are added, altered, or removed specific to known desired result. With artificial selection, hundreds of genes are altered in ambiguous and unpredictable ways.
Basically, there’s no reason why the GMO discussion should be inundated with panic. Let’s look at the GMO debate with a clear mind.
Photo Credit: ZEISS Microscopy | CC
Safety studies of GM crops and foods are so boring! You never find them harming anything
Excellent article. I’d also like to mention that hybridization cross breeding takes frequently dozens if not hundreds of generations of test subjects to perfect the gene specialization the breeder desires. This means hundreds, if not thousands, of organisms are born, and then slaughtered cruelly simply because they don’t have the traits the breeder wants to isolate. Genetic engineering eliminates all this cruelty to animals, so if you believe in treaty animals morally, with dignity, even while using them for food or other domestic uses, then you should embrace genetic engineering in a lab as a more moral practice.
This is a very interesting article. It echoes thoughts I have inherited from my late father, who was a scientist, a chemist who grew up on a subsistence farm in southern Ohio during the Great Depression. He always maintained that human beings have been practicing genetic modification for thousands of years. As a scientist myself, I see the sense in that; furthermore, I understand that grafting and selective cross-pollination are rather crude compared with laboratory techniques. HOWEVER, I don’t think that our ancestors were able to put fish genes into tomatoes to make them more freeze resistant. Even MORE to the point, they didn’t PATENT genetic material; to the contrary, they SHARED their advances.
Hi Art, thank you for your comment. I’m glad you could connect with the overall message. Some minor points I want to mention that might lead you to some other interesting ideas.
1. There have never been fish tomatoes on the market: http://en.wikipedia.org/wiki/Fish_tomato
2. If you have Facebook, you should check out some of our threads on some of the misconceptions people have about horizontal gene transfer. One question posted to GMO Skepti-Forum: “What examples are there of DNA from plants naturally getting mixed with DNA from other species such as insects? I seem to remember seeing someone mention somewhere about this happening before GMO just through nature.” https://www.facebook.com/groups/280492318756692/permalink/306895819449675/
We also had a great Q&A on the topic here: https://www.facebook.com/groups/GMOSF/permalink/297569983715592/
3. I share concerns about patents, but keep in mind that it is not only GMOs that are patented, but other seeds and plants as well. Even crossbred and hybridised plants get patented. You can find some of these discussions here: http://wiki.skeptiforum.org/wiki/GMO_Skepti-Forum_Threads#Business.2C_Regulation.2C_Labeling
I hope some of this info help. Please feel free to jump into the community to ask further questions. We have several scientists who can share their perspectives.
Kindness,
Knigel
according to this article then, there should be no reason to not clearly and concisely label foods that have been genetically modified. I wonder why the resistance to clear labelling?