Posts dated: July2010

I never cease to be amazed by the problems that food technologists worry about. 

A German chocolate company—and the state of Schleswig-Holstein—are funding $2 million worth of research to find a method to safely add chocolate pieces to yogurt.

Why is the safety of chocolate in yogurt a problem?  Yogurt is wet and dissolves the sugar crystals in chocolate, making it messy.  Worse, chocolate is not sterile and yogurt is an ideal bacterial growth medium.

Sterilizing chocolate, it seems, is not easy:

The constituents of the cocoa are very sensitive. Excessively high temperatures and incorrect cleaning, roasting, grinding or conching impair the quality of the finished chocolate pieces. All that has to be taken into account when you are developing new sterilisation techniques.

Researchers, get busy!  Please, please solve this problem right away.

And in the meantime, for those of you desperate for chocolate in your yogurt, how about tossing in a handful of M&Ms?

Kellogg announced yesterday that won’t put health claims on at least some of its cereal boxes.  According to reports, “Kellogg’s FiberPlus Antioxidants Cereals do not make health claims, but rather state the amount of fiber and antioxidants on the front of pack [my emphasis].”

FibrePlus Antioxidant brand is formulated to deliver 35 to 40 percent of a consumer’s daily fiber (depending on variety) along with antioxidant vitamins C and E.

Take a look at the packages.

According to FDA regulations, describing the level of antioxidant nutrients present in a food is a nutrient content claim, not a health claim.  Even so, such claims are only allowed if the nutrients have an established Reference Daily Intake.  Antioxidant vitamins C and E do have RDIs, so this must mean that what Kellogg is doing is OK.

OK, so labeling the package with antioxidants, fiber, and whole grains does not constitite a health claim.  Kellogg is not pretending that these things actually DO anything special for health.

It doesn’t have to.  By this time, everyone knows that these nutrients are the ones you are supposed to be eating.  Does an implied health claim differ from an  overt health claim?  You  have to decide this for yourself.

Do not expect the FDA to help.  As I discussed a couple of days ago, these kinds of things cannot be an FDA priority—unless Congress decides they should be.

How can food producers become more sustainable? Use less meat in their products.

Rita Jane Gabbett writes today on Meatingplace.com, a meat industry site, about a talk given by Cheryl Baldwin of Green Seal at a recent meeting of the Institute for Food Technologists.

She told Meatingplace that meat producers should better understand “the production methods used to feed and raise animals, making sure they are treated humanely and looking for ways to reduce the carbon footprint of processing methods.” She also said that “grass-fed animals created a lower carbon footprint than those that were grain fed.”

One can only imagine the reaction of meat producers to her comments.

Meatingplace noted:

Earlier this year, however, a study by the University of New South Wales published in the journal Environmental Science and Technology indicated beef produced in feedlots had a slightly smaller carbon footprint than meat raised exclusively on pastures. (See Feedlot beef could be “greener” than grass-fed: study on Meatingplace, Feb. 8, 2010.)

More recently, Washington State University scientists concluded that improvements in U.S. beef industry productivity have reduced the environmental impact of beef production over the past decade. (See Better beef industry practices have reduced carbon footprint on Meatingplace July 15, 2010.

This follows soon after the Dietary Guidelines Advisory Committee report’s advice to:

Shift food intake patterns to a more plant-based diet that emphasizes vegetables, cooked dry beans and peas, fruits, whole grains, nuts, and seeds. In addition, increase the intake of seafood and fat-free and low-fat milk and milk products and consume only moderate amounts of lean meats, poultry, and eggs.

To the meat industry, advice about health and sustainability must come as a serious challenge. Keep an eye on the “eat less meat” theme. My guess is that we will be hearing a lot more about it.

Britain has, as threatened, split up its Food Standards Agency (roughly equivalent to our FDA).  The split only applied to FSA in England.  Its role in Scotland, Northern Ireland and Wales remains the same for the moment.

As I mentioned in a previous post, the precipitating cause of the new government’s distress about the FSA was—incredible as it seems—the agency’s support of traffic-light front-of-package labeling. 

In its new configuration, FSA keeps its food safety functions.  Its nutrition and labeling functions go to the Department of Health.  Its country-of-origin and other non-labeling policies go to the Department for Environment, Food and Rural Affairs (Defra).

Surprise!  The UK Food and Drink Federation thinks this is a terrific move.

As the voice of the UK food and drink manufacturing sector, we believe it is important to maintain an independent food safety regulator and fully support today’s decision by the Government to retain the Food Standards Agency…We also support the decision to move responsibility for nutrition, and other food policy issues, back into Government departments…This should lead to clearer and more consistent policy making, while avoiding unnecessary duplication of effort across Whitehall.

FSA may be keeping its food safety responsibilities, but Food Safety News reports that the agency hasn’t been doing such a great job with them.  FSA’s most recent  Annual Report says that it did not achieve its target for reduction of Campylobacter infections.  It also failed to reach targets for reductions in salt and saturated fat.

Under the new division of responsibility, salt and fat are no longer FSA’s problem.  The Health Department will be dealing with them—or not.

Given the industry-friendly bent of the new new health minister, expect considerable backing off from previous FSA policies. 

England is not setting a good example for our FDA, alas.

As for what FDA can and cannot do, see Michael Taylor’s post on the Atlantic Food Channel.  In discussing why the FDA isn’t taking a more vigorous enforcement stance against unsubstantiated health claims on food products, Taylor says:

We have no pre-market review authority over such claims, and, under prevailing legal doctrines concerning “commercial free speech,” the evidentiary requirements placed on FDA to prove that such claims are misleading are significant and costly to meet. Moreover, meeting them requires tapping the same team of nutritionists, labeling experts, and lawyers who are working on our other nutrition initiatives.

If they go after health claims, he says, it’s a losing proposition:

We’re also conscious of the cleverness of marketing folks, who, once we prove today’s claim is misleading, can readily come up with another one tomorrow. Going after them one-by-one with the legal and resource restraints we work under is a little like playing Whac-a-Mole, with one hand tied behind your back.

What he doesn’t point out nearly strongly enough, in my opinion, is that doing something about health claims rests with Congress.  Congress passes laws.  The FDA’s job is to enforce them.  Congress needs to give the FDA the tools it needs to protect the public and promote public health. 

And that, of course, brings us back to the food safety bill that has been sitting in the Senate for the last 11 months.  If Congress can’t even get that passed, it’s hard to be optimistic about its doing anything reasonable about misleading health claims.

I think not nearly well enough, but you would never know it from listening to food manufacturers. 

Let’s start with Europe.  Health claims are a big deal there these days, as the agency dealing with them, EFSA (European Food Safety Authority), copes with thousands of petitions.

In June,  EFSA representatives complained that the “scientific” evidence submitted by food companies to support their petitions included—get this—“excerpts from the Old Testament, Wikipedia, a Tea Association press release, a Royal Air Force report and the American Heritage Dictionary.”

The NDA panel, which is responsible for assessing the mountain of health claims applications submitted under the Regulation, said that along with the expected references to clinical studies published in peer-reviewed academic journals, it had also been presented with references from Wikipedia, press releases, dictionaries, the Bible and even an RAF report.

Trying to make sense of translations of references from other languages into English had presented additional difficulties, while ‘clarifications’ provided by some applicants in response to requests for further information had been confusing or inadequate, further delaying the process.

The quality of this evidence, says EFSA, is ‘far from optimal.”  Indeed.

From the food industry point of view, however, scientific substantiation of health claims presents pesky barriers.  Moving on to the United States, a food industry commentator asks:

We’re talking about the biggest food companies in the world being told the claims that help sell some of their foods are deceptive and misleading….And them agreeing to change or withdraw the claims…Er sorry… but why go along with it if you stand by the science?…Is the science there or not? Do these products (a probiotic drink and an antioxidant-boosted cereal) work or not?…Does the problem lie with the nutrition science itself (not enough clinically backed, human intervention trial-demonstrated, positive associations), or the way the science is being interpreted by regulators and companies that wish to express some of that science in their marketing materials?

Good questions.  As I read the literature, the more carefully done studies of functional ingredients tend to show the least benefit. 

As I keep saying, functional foods are about marketing, not health.

I’m just getting around to reading an optimistic report from USDA about how much more energy we are getting from converting corn to ethanol. 

The report surveyed corn growers for the year 2005 and ethanol plants in 2008 and happily reports that energy yields are improving.  

Never mind that the mere thought of using food resources to feed cars rather than farm animals or people makes no sense from the standpoint of sustainability.   Early estimates of energy efficiency made it clear that it took almost as much—or, in fact, as much—energy to convert corn to ethanol as cold be obtained from the ethanol, and that the size of the energy yield depended on who was doing the estimating.   

This latest report says that “the net energy balance of corn ethanol has increased from 1.76 BTUs to 2.3 BTUs of required energy” since 2004.  If true,

Ethanol has made the transition from an energy sink, to a moderate net energy gain in the 1990s, to a substantial net energy gain in the present. And there are still prospects for improvement. Ethanol yields have increased by about 10 percent in the last 20 years, so proportionately less corn is required. In addition to refinements in ethanol technology, corn yields have increased by 39 percent over the last 20 years, requiring less land to produce ethanol.

I still think this is not a good idea.  A rational energy policy must develop sustainable sources, and corn is not one of them.

I’ve been collecting items on food safety for the last week or two. Here’s a roundup for a quiet Friday in July:

Antibiotics in animal agriculture

     USA Today does great editorial point/counterpoints and here is one from July 12 on use of antibiotics as growth promoters or as  prophylactics in farm animals and poultry.  This selects for antibiotic-resistant bacteria.   If we get infected with antibiotic-resistant bacteria, too bad for us. 

     The paper’s editors think that use of antibiotics for these purposes is irresponsible:  Our view on food safety: To protect humans, curb antibiotic use in animals.

     Dr. Howard Hill, a veterinarian who directs the National Pork Producers Council, defends these uses of antibiotics: Don’t bar animal antibiotics.

The source of the 2006 E. coli 0157:H7 outbreak in California spinach

     USDA and UC Davis investigators are still trying to figure out how the toxic E. coli O157:H7 got onto the spinach. Investigators did not find the bacteria on the spinach field itself, but they did find it in water, cattle, and cattle feces at a cattle crossing over a stream one mile away. Leading hypotheses: runoff from that stream or wild boar.

     Subsequent studies showed low levels of E. coli 0157:H7 in wild animals and birds.  A new study confirms that just under 4% of wild boar harbor the bacteria. 

     The investigators say the spinach outbreak of 2006 was the result of a combination of circumstances: “Everybody is starting to realize that maybe unusually heavy rainfall prior to planting could be an issue in terms of where water is routed.”

     Dairy farming is moving into California’s Central Valley in a big way.  Runoff from those farms will not be sterile and growing vegetables along water routes may be risky.  Compost, anyone?

The chemical behind Kellogg’s cereal recall

     Kellogg recalled 28 million packets of breakfast cereals last month because people reported funny smells and getting sick from something in the packaging.  At first, Kellogg would not say what the chemical contaminant might be.  

     Then it said the chemical is methylnaphthalene. Mothballs! (Are they still making mothballs?  Their smell is unforgettable)

     Tom Philpott’s comments on Grist.com point out what’s really at stake: “And of course, the real scandal is what Kellogg’s is marketing to kids: a tarted-up slurry consisting mainly of sugar, corn products, partially hydrogenated oil, and food colorings. But that’s a whole different story.”

Salsa and guacamole are sources of foodborne illness

     The CDC reports that salsa and guacamole are becoming more frequent sources of contaminants leading to illness.  CDC started collecting information on sources of outbreaks in 1973.  Its first outbreak due to salsa or guacamole occurred in 1984.  Since then, there have been 136 such outbreaks.  Restaurants and delis were responsible for 84%.  Between 1984 and 1997, salsa and guacamole outbreaks accounted for 1.5% of total foodborne outbreaks.  But the percentage rose to 3.9% from 1998 to 2008.

     Moral: make your own!

China deals with melamine in milk powder

     China is taking creative steps to prevent melamine from getting into milk powder and infant formula.  To discourage fraudulent producers from boosting up the apparent level of protein in milk with melamine, it simply reduced the amount of protein required.

The latest on food irradiation

     FoodSafetyNews.com presented a two-part series on food irradiation (part 1 and part 2), both of them quite favorable to the technology. As I discuss in my book, Safe Food, I don’t have any safety ojections to food irradiation, but I consider it a late-stage techno-fix for a problem that should never have occurred in the first place.

     I conclude with my favorite quote from former USDA official Carol Tucker Foreman: “sterilized poop is still poop.”

Enjoy a safe weekend!

Nestlé (the corporation, not me) is moving its Healthy Kids Program to China, and intends to put the program into every country in which it operates by the end of 2011.

The program “aims to improve the nutrition, health and wellness of children aged 6-12 years old by promoting nutrition education, balanced diet, greater physical activity and a healthy lifestyle.”

Nestlé believes that education is the single most powerful tool for ensuring that children understand the value of nutrition and physical activity to their health through the course of their lives. As a Council member of the Chinese Nutrition Society, Nestlé is indeed honoured to work together with the authorities and several other organizations to promote nutrition awareness and health education for the Chinese children.

Want to make some guesses about what this program will say about nutrition?  Note yesterday’s post.  Probiotics in juice drink straws, anyone?

One clue comes from that barge loaded with food products that Nestle is sending up the Amazon into the Brazilian outback: The vessel will carry 300 different goods including chocolate, yogurt, ice cream and juices.”