Something tastes bad…
When I first read reports of mercury in corn syrup, I was first shocked, then concerned, then skeptical. Janet (qualifications unknown) at Ethicurean described the source of the mercury (in fact, she was picked up by Huffington Post):
How did the heavy metal get in there? In making HFCS — that “natural” sweetener, as the Corn Refiners Associaton [sic] likes to call it — caustic soda is one ingredient used to separate corn starch from the corn kernel. Apparently most caustic soda for years has been produced in industrial chlorine (chlor-alkali) plants, where it can be contaminated with mercury that it passes on to the HFCS, and then to consumers.
First of all, I’m no particular fan of corn syrup; it tastes nasty and I avoid it. However, I also avoid added sugar or rice syrup or any other sweetener because I eat enough calories without them. Various types of foodie have been railing against HFCS for a long time, but I haven’t actually be able to figure out why. Instead of saying “HFCS is bad” we should be saying “processed food is bad”. Any special link between obesity and HFCS was broken in December with a comprehensive review in the American Journal of Clinical Nutrition (see press release in Newswise). The other argument against HFCS is that we are growing too much corn, but this is a sidestep at best. If people really cared about the amount of acres taken up by corn, they’d be saying “eat less meat” instead of “eat less corn syrup” (see the ISU Extension fact sheet about corn syrup for the uses of corn – ironically, you can’t get both ethanol and HFSC from a given bushel). Seriously, if you don’t like the stuff, then don’t eat it – but it’s helping no one to spread falsehoods and exaggerations.
Ok, back to mercury. While I’ll be the last person to say that the FDA is doing the best job in keeping us all safe, or that food processing conglomerates aren’t out to get a profit no matter what, American capitalism does have some protective effects. I’d wager that the Corn Refiners Association knew about the possible contamination source long ago and has done their best to remove or reduce it (which is exactly right, according to the CRA press release) simply to avoid future boycotts and lawsuits. Some commenters on Janet’s post were also skeptical, along with Marion Nestle on her Food Politics blog.
Marion points out that the study used no controls, and I heartily agree. The researchers should have obtained multiple brands of approximately equivalent foods (vanilla flavored yogurt for example), tested for mercury, and looked for any statistically significant differences between those that contain and those that do not contain HFCS. Without this comparison, the result that “nearly one in three” of the products contained detectable amounts of mercury is meaningless. Some amount of mercury is in everything we eat, processed or not, perhaps the result of decades of coal burning. Of course, there’s many more details to consider… Read More…
True food? Maybe, but its proponents are spreading lies.
What follows is the second in my series of responses to Greenpeace’s True Food Guide Questions and Answers. This one focuses on question number 6: “How do GE crops affect the environment?”
As you read this, it might seem that I am turning the facts around. Please remember that I’m just trying to fill in the other half of the story. If I was to write a paper on the possible effects of GM crops, I would include information on both positive and negative effects. I understand that it isn’t Greenpeace’s goal to provide both sides of the story, but they really should, if they want to help consumers make good decisions. Instead, they are only providing half of the story, as well as half truths and some outright lies, and effectively telling people what to think, instead of responsibly spreading information. No matter your views, this is just wrong! If you’d like to know more details about any of these points, or if you would like to see some peer-reviewed research to back anything up, just let me know in a comment.
On to the response! Read More…
Bt cotton and suicides in India
The idea that GMOs are causing people to commit suicide is very compelling. But is it true?
A study released by IFPRI (International Food Policy Research Institute) in October says there is no connection between Bt cotton and farmer suicides in India. IFPRI “seeks sustainable solutions for ending hunger and poverty”, so it makes sense for them to investigate any possible links between Bt and farmer suicides. Bt Cotton and Farmer Suicides in India: Reviewing the Evidence examines every aspect of the problem, concluding that farmers in India do have very real issues pressing upon them, but Bt is not to blame for their choice to commit suicide.
The report is through, but written in language that lay people can easily follow. I encourage you to read it for yourself. To me, the most interesting part was titled “The Bt Cotton Controversy: The Institutional Context”. This section listed the actual causes of farmer distress, and once we identify the real problems, we can start talking about real solutions. The biggest problem seems to be education. Farmers have access to new technology but little if any information on how to use it to maximize benefit. Read More…
Criticisms of genetic engineering
Alan McHughen, plant biotechnologist at UC Riverside and author of Pandora’s Picnic Basket, is one of the professors participating in Debating Science, helping the students to develop an informational website about bioethics that may one day be relesased to the public. He recently shared some insights with the group that he has allowed me to share with you (emphasis original)…
I just returned from a trip to Lithuania and Poland, giving talks to university students, farmers and the public. They confirmed what I’d often thought, that the variouscriticisms of GE crops could equally be applied to conventional breeding, but rarely, if ever, are.This doesn’t necessarily mean the criticisms are invalid, but it does mean we show prejudiceagainst GE by applying the criticisms exclusively to GE.
For some examples:
1.GEis unnatural; it requires human intervention to produce plants that could not be produced by Nature alone. Conventional counterexample: Grafts between rootstock and scion of different species could not exist without human intervention. GE is singled out for this criticism. There is no regulatory scrutiny for interspecific grafts.
2.GE is disruptive to the genome, inserts t-DNA randomly and unpredictably Conventional counterexample:Ionizing radiation is far more disruptive to the genome and unpredictable in its effects. GE is singled out for this criticism. There is no regulatory scrutiny for mutation breeding.
3. GE crosses the species barrier; nature does not allow genes to cross the species barrier Conventional counterexample: Wheat, triticale and many other examples of conventional breeding to move genes from one species to a different one. Even in nature, Agrobacteriumtumefaciens does itacross distant and completely unrelated species, and without human help.GE is singled out for this criticism. There’s no regulatory scrutiny for interspecific crossing.
4. HT GE crops can cross with wild relatives, creating hybrid ‘superweeds’. Conventional counterexample: All crop cultivars carry some (natural) HT genes, and these can (and do) cross into wild relatives to create hybrids with herbicide tolerance(e.g. triazine tolerant canola). GE is singled out for this criticism. There’s no regulatory scrutiny for outcrossing of conventional HT cultivars.
5. Successful GE cultivars can lead to broad regional monoculture, exposing the crop to diseases and other threats. Conventional counterexample: So can a successful conventional cultivar lead to monoculture. GE is singled out for this criticism. There’s no regulatory scrutiny for monoculture of conventional cultivars.
6. GEcultivars requirefarmers to buy seed each year. Conventional counterexample: Conventional hybrids also require farmers to buy fresh seed each year. They’ve done so since the mid-20thCentury. GE is singled out for this criticism. There’s no regulatory scrutiny for conventional hybrids.
7.GE seeds are patented and so use of their seeds is restricted. Conventional counterexample: Patents can also exist on conventional cultivars. And Not all GE cultivars are patented. GE is singled out for this criticism. Patenting is not unique or limited to GE, normustGE cultivars be patented.
8.GE cultivars are controlled by big companies and intended to make profits. Conventional counterexample: All seed companies intend to make profit, even with sales of seed of conventional cultivars. Also, not all GE cultivars are from private companies (e.g.GE papaya in Hawaii). GE is singled out for this criticism.
Can you think of any examples of a criticism of GE that cannot also be applied to conventional breeding?



Shameful Shiva
Every time I read something Vandana Shiva has written, I become more convinced that she is either 1) willfully ignorant on the subject of farming or 2) willfully ignoring a whole swath of problems in order to focus on a pet peeve. She is another sad example of a self-styled celebrity who plays games with people’s lives because she is unwilling to move from her ideology. One would think she would at least adapt her diatribes to fit peer-reviewed research or the numerous surveys of the people she claims to protect. Unfortunately, she’s still using the same old talking points and flat out lies that have accomplished nothing.
Case in point: Shiva writes about the plight of Indian farmers in the Huffington Post article From Seeds of Suicide to Seeds of Hope: Why Are Indian Farmers Committing Suicide and How Can We Stop This Tragedy? in April of 2009. Instead of focusing on real solutions or the real source of the problems, she points a lazy finger at the boogeyman Monsanto. I don’t have any particular love for big M (or for capitalism in agriculture in general), but it’s wreckless to ignore all of the other issues, as she does in this article (and many others). Shiva writes:
The majority of “corporate seed” is hybrid. If farmers save seed from hybrids, the resulting plants will not have the benefit of hybrid vigor. That’s biology, and has nothing to do with corporate greed, patents, or genetic engineering. Hybrids can be grown without fertilizers and pesticides, but they will then yield less. Local varieties yield less without fertilizer and pesticides as well. In other words, hybrid seed grown in farming methods that de-emphasize chemical inputs will do as well if not better than saved seed, assuming that the hybrid is appropriate for the environment (wet or dry soil, etc). Sadly, no one is researching the use of improved seed in alternative farming systems. This is not physics, it’s crop science – which might be why she doesn’t seem to understand it. Some activists argue that we shouldn’t be using hybrids at all, but removing hybrids of all types from the food supply would spell starvation for a lot of people.
There is no corporate monopoly of the seed supply in India. Ironically, things might be better if seeds there was such a monopoly, but seed is often bought from cut rate dealers selling counterfeit (mislabeled or fake) seed. To solve this problem, India would need to adopt some sort of seed certifying system. It would also be useful to have more government research into crop varieties including genetically engineered traits, then distribute them to farmers at low cost, as China does.
Farmers are welcome to continue using local varieties; there is no legal requirement for them to take out loans they can’t afford to buy fertilizers, pesticides, and seed (or larger houses, extravagant weddings, etc). One of the biggest problems plaguing farmers and small business owners all over the world is credit – absurdly high interest rates are a bigger problem than Bt could ever be.
Shiva never asks why “corporate seeds” were snapped up so quickly by farmers (perhaps she thinks they are stupid). Farmers all over the world are buying Bt seed of various species because it works. Bt decreases pest damage without increasing pesticide use. It isn’t a silver bullet, though. Bt only controls certain pests, and the specific varieties the trait is in may or may not be suited for the local environment. The best way to use traits like Bt are to integrate them carefully into an Integrated Farm Management Plan and to put the trait in locally adapted varieties. To solve the existing farm problems in India – including eroded soil, misuse of fertilizers and pesticides, monocultures, and misuse of Bt – India needs farm extension and price regulation. The farmers surely remember how to grow millet, legumes, and oilseeds, but why would anyone choose to grow those if they could get a higher price for cotton?
Some of these and many other issues surrounding the problem of farmer suicides and Bt cotton in India can be found in a report by IFPRI (International Food Policy Research Institute) in October of 2008. I wrote about the report in November of 2008 in Bt cotton and suicides in India.
h/t Luigi.