Food Politics

by Marion Nestle
Sep 23 2010

Genetically modified foods in supermarkets: how many?

A reader writes that the discussion over genetically modified foods makes no sense because: “virtually every food we consume today  has been genetically  modified.”

The accuracy of this statement depends, of course, on how you define “genetically modified.”  If you include traditional genetic crosses done through plant and animal breeding, the statement is correct.

If, however, you restrict the definition of GM foods to those involving actual manipulations of DNA (rather than eggs and sperm), and the insertion of DNA from one organism into the DNA of another, then the number of GM foods approved for production in the United States is quite limited.

The FDA provides a list of such foods in its inventory of completed consultations on bioengineered foods.

The list includes GM corn, soybeans, cotton, cotton, alfalfa, canola, and sugarbeets, most of which are fed to animals or used as ingredients in processed foods.

But what about supermarket fruits and vegetables?  To answer this question requires a clear separation between approval of production and actual production.

To date, the FDA has approved production of GM varieties of plums, cantaloupe, papaya, squash, radicchio, tomatoes, and potatoes.  Note: sweet corn–the kind you eat off the cob–is not on the list.

Even if approved, the GM varieties may not be in your supermarket.  GM varieties, it turns out, are difficult to produce under field conditions.

When I was doing the research for What to Eat in 2005 or so I tried hard to find out which supermarket foods might be GM.  This was not easy.  Basically, nobody knew.  Unless you test for GM, you can’t tell, and nobody was testing.

So I did some testing.  The foods most highly suspected of being GM were papayas from Hawaii engineered to resist ringspot virus.  I sent samples of seeds from several varieties of supermarket papayas to GeneticID, a company that does such testing (at, alas, great expense).   As I recount in the book, the only papaya that tested positive was the one from Hawaii.  The one labeled organic did not and neither did any of the others.

I believe that the public has a right to know whether supermarket foods are GM varieties.  Without labeling, you can’t tell.  That is why we need GM labeling.

As I explained a year ago, the U.K. requires labeling of GM ingredients and companies making products with GM ingredients do so.  We could do this too, and we should.

Addition: The Associated Press writes about the significance of these discussions (I’m quoted).

Sep 21 2010

The GM salmon saga continues

The FDA has just concluded two days of hearings on the safety and labeling of genetically modified (GM) salmon. I’ve been collecting comments about this and will add a few of my own.

USA Today: Let’s begin with Elizabeth Weise’s clear, insightful summary of what this is about. She summarizes the situation with GM salmon in a nifty Q and A format:

Q: What happens next?

A: Nothing soon. Before issuing a decision on the application, FDA will publish an Environmental Assessment of the salmon, followed by a required 30-day comment period. The agency would then determine whether it would file a Finding of No Significant Impact or an Environmental Impact Statemen….then use those findings to make a decision on whether or not to allow the sale of the salmon. The agency has said it has no set timeline for reaching a decision. Were the agency to decide to approve the sale of the salmon, it would take two years before the first crop was ready, company officials say.

Food Chemical News (September 20):  reports that AquaBounty’s CEO has no intention of restricting GM salmon farms to Panama. At the FDA hearing, he “forecast a spread of transgenic salmon operations from a proposed site in Panama to other countries, including the United States.”

Oops. The FDA had to remind him that his company’s application is for Panama only, and any other sites would require supplemental applications from the firm.”  The FDA said it was “not interested in AquaBounty’s future business plans.”

FoodNavigator.com reporter Caroline Scott-Thomas predicts that the hearings will lead to no recommendation.

The FDA’s Veterinary Medicine Advisory Committee (VMAC) did not vote or make a recommendation at the end of the hearings, saying that it does not yet have sufficient data…After two days of hearings, a Food and Drug Administration (FDA) advisory panel has called for more research to decide whether genetically engineered salmon is safe for consumption.

The New York Times says that the advisory group favored approval of the GM salmon, but that this could take ages.

Food Chemical News (September 21) says that most speakers at the hearing on GM labeling did not want it to be mandatory. It quotes Greg Jaffe, the director of biotechnology at Center for Science in the Public Interest (CSPI), as opposing mandatory labeling. Apparently, Jaffe:

urged AquaBounty to require its customers to provide “real” voluntary labeling on food products, such as “AquaBounty salmon,” “fast-growing salmon” or “environmentally friendly salmon”….He agreed that “no ingredients from a genetically engineered source” would be acceptable language provided there’s a comparable GE product in the marketplace.

Why would a representative of a consumer organization oppose mandatory labeling?  For that, go to

Jill Richardson’s lengthy analysis of FDA’s actions, written for Grist.  She lays out some of the more complicated issues, and takes a tough look at the biases of the committee members.

Washington Post: Lindsey Layton writes about the debates over labeling (I’m quoted).

A Washington Post poll found 78% of respondents to be worried about the health and safety risks of GM salmon.

Meanwhile, in the UK, the new government has stopped a scheduled public dialogue about GM foods.  That’s one way to handle it. All those pesky consumers don’t want it? Too bad for them.

My interpretation: of course the public does not trust genetically modified foods. The foods are not labeled. If the biotech industry and the FDA want the public to trust them, they need to label the GM salmon and all the other GM foods in the marketplace.

The public wants the right to choose.  The public should have the right to choose.

The issue of GM foods cannot just be about safety.

My mantra on this one: Even if genetically modified foods are safe, they are not necessarily acceptable.

I was a member of the FDA’s Food Advisory Committee in 1993 when, under pressure from Monsanto, the agency rejected labeling of GM foods.  I wish the FDA had listened to me and the other consumer representatives on the committee, all of us convinced that labeling is essential for promoting trust, and giving the public a choice. And, we said, it’s the right thing to do.

The FDA now has a chance to redeem it’s bad decision.  I hope they take this opportunity and decide to require labeling.

Footnote: I wrote about all this in my book, Safe Food: The Politics of Food Safety, just published in a new edition in July.  In preparing the second edition seven years later, I was surprised by how little about food biotechnology had changed.  The issues have not changed.  The field is stuck.   Labeling is one way to break the stalemate.  Let the public have a choice.  I’ll bet doing that will solve a lot of problems.

Sep 20 2010

One more time: corn sugar chemistry

Thanks to alert reader Glen for pointing out that the FDA already has a regulation for Corn Sugar in the Code of Federal Regulations, under food substances Generally Recognized as Safe (GRAS).  CFR Section 184.1857 reads:

(a) corn sugar (C6H12O6, CAS Reg. No. 50-99-7), commonly called D-glucose or dextrose, is the chemical [alpha]-D-glucopyranose. It occurs as the anhydrous or the monohydrate form and is produced by the complete hydrolysis of corn starch with safe and suitable acids or enzymes, followed by refinement and crystallization from the resulting hydrolysate.

(b) The ingredient meets the specifications of the Food Chemicals Codex, 3d Ed. (1981), pp. 97-98 under the heading “Dextrose….”

(c) In accordance with 184.1(b)(1), the ingredient is used in food with no limitation other than current good manufacturing practice.

The Corn Refiners have just petitioned the FDA to be allowed to use the name Corn Sugar to apply to both glucose/dextrose and High Fructose Corn Syrup (HFCS).  But the existing definition seems to exclude HFCS.  While HFCS is about half glucose, it is also about half fructose, and its manufacture from corn starch requires one more enzyme.

A reminder about sugar chemistry:

  • Glucose is the sugar in blood, and dextrose is the name given to glucose produced from corn but biochemically they are identical.
  • Fructose is the principal sugar in fruit.  In fruit, it raises no issues because it is accompanied by nutrients and fiber.
  • Sucrose is table sugar.  It is a double sugar, containing one part each of glucose (50%) and fructose (50%), chemically bound together.  Enzymes in the intestine quickly and efficiently split sucrose into glucose and fructose, which are absorbed into the body as single sugars.
  • HFCS is made from corn starch.  It contains roughly equivalent amounts of glucose (45 to 58%) and fructose (42 to 55%).

HFCS raises several issues, health and otherwise:

  • Quantity: the U.S. food supply provides to every American (all ages) about 60 pounds of sucrose and another 60 pounds of HFCS each year.  This is way more than is good for health.  Sugars of any kind provide calories but no nutrients.
  • Fructose: increasing evidence suggests that the metabolism of fructose–which differs from that of glucose–is associated with abnormalities.  This means that it is best to reduce intake of fructose from table sugar as well as HFCS.
  • Farm subsidies: these go to large corn producers and have kept down the cost of HFCS relative to that of sucrose.  The use of corn to make ethanol has raised the relative price of HFCS.
  • Genetic modification: Most corn grown in the United States is genetically modified to resist insects or herbicides.

From a health standpoint, it makes no difference whether the sweetener is sucrose or HFCS.

As for agave sugar as a substitute: it can have much higher concentrations of fructose than either sucrose or HFCS but its labels do not give percentages so you have no way to know how much.

Given all this, what’s your guess about what the FDA will decide?

Sep 18 2010

Restaurant safety grades: creativity in action

I haven’t said anything to date about New York City’s new safety grades for restaurants.  Their purpose is to encourage restaurants to do a better job on safety procedures so customers don’t get sick.

As the Health Department explains, the grades are awarded on a point system.  Points go to violations of food safety regulations.  The fewest points get an A.  Those with the most get a C.  The B grade is someplace in between.

Wall Street Journal blogger Aaron Rutkoff discovered a restaurant with an exceptionally creative method for dealing with its embarrassing B grade.

Enjoy the weekend and watch out for those grades!

Sep 17 2010

A decent food safety system: will we ever get one?

I get asked all the time what food has to do with politics.  My answer: everything.  Take food safety, for example.

No wonder meat producers hate bad press.  According to Illinois Farm Gate, when consumers read scary things about meat, they stop buying it.

When media attention is given to animal welfare issues, regardless of the production practices involved, consumer demand softens not only for that particular meat, but for all meats. Over the past decade, pork and poultry demand would be higher, were it not for media attention to livestock production issues. Such attention causes consumers to eat less meat and show preference to spend their food dollar on non-meat items for as long as 6 months after the media report.

This week’s bad press is about the use of antibiotics as growth promoters in industrial pig farming.

Dispensing antibiotics to healthy animals is routine on the large, concentrated farms that now dominate American agriculture. But the practice is increasingly condemned by medical experts who say it contributes to a growing scourge of modern medicine: the emergence of antibiotic-resistant bacteria, including dangerous E. coli strains that account for millions of bladder infections each year, as well as resistant types of salmonella and other microbes.

Dr. James R. Johnson, an infectious-disease expert at the University of Minnesota explains what this is about:

For those of us in the public health community, the evidence is unambiguously clear….Most of the E. coli resistance in humans can be traced to food-animal sources.

Will reports like this discourage consumers from buying pork and other meats?  Consumers are not stupid.  They just might.

As for our profoundly dysfunctional Senate: it seems increasingly unlikely to pass food safety legislation before the midterm election cycle.  All of a sudden, food safety is too expensive?

Tell that to industries producing food that nobody will buy out of fear of becoming sick.

That’s food politics in action for you.

Last year at about this time, Bill Marler, the Seattle attorney who represents victims of food poisonings, sent every senator a tee shirt with this logo on it.  I suppose it’s naive to hope that maybe he will get his wish by this thanksgiving, but I am everlastingly optimistic that reason occasionally prevails.

Footnote 1: China is considering the death penalty for perpetrators of food safety crimes: “Officials who are involved in food safety crimes should not be given a reprieve or be exempt from criminal punishment.” Mind you, I am not a proponent of the death penalty, but I do think we need a safety system that holds food producers accountable.

Footnote 2: And then there is the half billion”incredible” egg recall.  Slow Food USA has a nifty video on the alternatives: “USDA and FDA.  Make eggs edible.  Now that would be incredible.”

Sep 16 2010

Baby food politics: Should WIC pay more for “Functional” foods?

Laurie True, who directs California’s WIC Association ( WIC is the Special Supplemental Nutrition Program for Women, Infants and Children), writes in The Hill about the latest efforts of infant formula company lobbyists to extract more money for their products.

WIC, for the uninitiated, provides formula and foods to low-income mothers of small children.    But unlike Food Stamps, it is not an entitlement.  Eligible families cannot enroll in WIC if the program does not have enough money to pay for the food.

Despite ample research demonstrating the effectiveness of this program in improving the nutritional status of participants, only about half of eligible mothers and children are able to enroll.

Any increase in the cost of infant formula means that even fewer eligible mothers will be able to participate.

At issue is a provision of the Childhood Nutrition Reauthorization Act thrown out when the Senate passed the bill last August.

The dropped provision called for USDA, which manages WIC, to make a scientific decision about whether WIC should offer foods that contain new “functional ingredients” like omega-3s, antioxidants, and probiotics.  These are increasingly being added to infant formula, baby food, and other foods that WIC buys.  They cost more.  But do the ingredients really make kids healthier?

To say the least, the science is highly conflicted and most studies show little evidence of demonstrable benefit.

WIC buys 60% of U.S. infant formula, so formula makers are eager to jack up the price.  USDA’s studies say that functional ingredients cost WIC upwards $90 million annually.  Formula makers are spending a fortune to make sure that these ingredients get no scientific scrutiny.

Call this baby food politics, but it matters.

Sep 15 2010

This is good news? U.N. says 925 million people are chronically hungry

The Food and Agriculture Organization and the World Food Program released their most recent figures on world hunger yesterday.

The good news: the number is 98 million fewer than in 2009, and below one billion.

The bad news: it is 925 million, a level the U.N. considers “unacceptable.”

In conjunction with the U.N. report, Oxfam America has released one of its own: “Halving Hunger: Still Possible.”  

Oxfam issued a press release on its report:

Ten years after world leaders committed to halve world hunger by 2015, little progress has been made to reduce the number of people who go to sleep hungry, and many hard-won achievements have been undone by the global economic, food and fuel crises….In the ten years since the MDGs [Millennium Development Goals] were agreed, the proportion of hungry people in the world has decreased by just half a percent – from 14 percent in 2000 to 13.5 per cent today.

Gawain Kripke, Policy Director for Oxfam America , said:

A new global food crisis could explode at any time unless governments tackle the underlying causes of hunger, which include decades of under investment in agriculture, climate change, and unfair trade rules that make it difficult for families to earn a living through farming.

The report says that “with a coherent and coordinated global response, halving hunger is still possible.”  That, however will require an increase in aid of $75, at least half from developed nations.

Hunger, it says, “is not inevitable; we can end it if we choose to.”

But will we choose to?  Doubtful.   The Senate is holding up action on the food safety bill because it is estimated to cost a little over $1 billion, and at least one senator thinks that’s too much to pay for a safe food supply, let alone making sure that people have enough to eat.

Here’s what today’s New York Times has to say about all this.  Oxfam is right.  Hunger is not inevitable.  But why don’t we have the political will to do something about it?

Sep 14 2010

Corn Refiners ask FDA to replace “HFCS” with “Corn Sugar”

The Corn Refiners Association is asking the FDA to allow a change in the name of their embattled sweetener from High Fructose Corn Syrup (HFCS) to Corn Sugar.

Of course they want this change.  HFCS is the new trans fat.  Everyone thinks HFCS is poison.

For the record once again, HFCS is not poison.  It is just a mixture of glucose and fructose in almost the same proportions as table sugar, sucrose.

Mind you, I am not fond of the idea that Americans use 60 pounds of corn sweeteners per capita per year and another 60 pounds of table sugar, and I am not particularly eager to help the Corn Refiners sell more of their stuff.

But you can understand the Corn Refiners’ pain: food companies are getting rid of HFCS as fast as they can and replacing it with table sugar.

This move is driven not only by bad press, but also by the fact that the price differential has all but disappeared.  HFCS started out at one-third the cost of table sugar.  Growing corn to make alcohol changed all that.

Let’s give the Corn Refiners credit for calling a sugar a sugar.  I would prefer Corn Sugars (plural) to indicate that it is a mixture of glucose and fructose.  But as long as they don’t call it “natural,” the change is OK with me.

But I’m wondering if it’s too late.  Maybe anything with the word “corn” in it will be enough to turn people off?  According to the Associated Press, the Corn Refiners are already using Corn Sugar in their advertising, so we will soon find out.

Your thoughts?

Additional historical note: Thanks to a reader, candyprofessor.com, who is evidently a fount of information about such things, for this enlightening tidbit:

In the early 1900s, what we call “corn syrup” was sold as “glucose,” the chemical name for the type of sugar derived from corn starches. Food reformers pointed to the “glucose” in candy and claimed that candy was poisoned with “glue.”  So the corn producers lobbied to have “glucose” renamed “corn syrup.” Sounds like we’re coming around again full circle…now “corn syrup” is poison!

Updates, September 15: Tara Parker-Pope writes about this in the New York Times (and quotes me).  So does Michele Simon on her blog.  As usual, Simon says it like it is:

As a result of this demonizing, we are now in the ridiculous situation where food companies are falling over each other to remove HFCS from their products, slap on a natural label, and get brownie points for helping Americans eat better….Only Big Food would find a way to make a product full of refined white sugar (which at one time was also demonized) seem like a healthy alternative. It’s like I always say, the food industry is very good at taking criticism and turning it into a marketing opportunity.

How, I wonder, will the Corn Refiners manage this one?  Not so easily, judging from readers’ comments.

Update, September 16: Fo0dNavigator.com reports that more than half of Americans surveyed will not buy products with HFCS.  Market researchers are advising food companies to get rid of it.