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The Dietary Guidelines Advisory Committee held a hearing yesterday on its recent report (see my posts of June 28 on the politics of this report, and June 29 on its science).  I could not attend the hearing but am collecting second-hand reports from people who attended or testified.

Philip Brasher, who blogs at GreenFields.com, summarizes lobbyists at work:

• National Pork Producers: “Lean meat is a vital source of high-quality protein and certainly should not be framed as a food to limit in the American diet….Urging Americans to shift to a more plant-based diet and consume only moderate amounts of lean meat implies they should decrease consumption of this vital, complete protein.”
• Egg producers: “The average American could increase egg consumption and still be within the egg-a-day limit.”
• The Sugar Association: Advice to reduce sugar is “impractical, unrealistic and not grounded in the body of evidence.”
• The Salt Institute:  “Encouraging consumption of low-salt foods will encourage Americans to eat excessively to make up for the lack of taste….The guidelines have become far more a reflection of ideology than sound science.”

The Organic Trade Association testified that the scientific review, which found no significant nutritional differences between organic and conventionally produced foods, is:

Neither grounded in current science nor relevant to the mandate of the Dietary Guidelines….[it is] in direct conflict with the advice put forth by the recent President’s Cancer Panel report regarding ways to reduce environmental cancer risk….It is inconceivable and alarming that the very document that is the underpinning of our nation’s policies regarding food and nutrition would include a statement that directly contradicts these recommendations….As released, the guidelines confuse the consumer, contradict the President’s own Cancer Panel, and do not enhance dietary recommendations.

To repeat: The committee report is simply advisory.  So is the lobbying.  The sponsoring federal agencies, USDA and DHHS, now must deal with both as well as with written comments on the report’s statements and recommendations.

The agencies write the final guidelines. Will they include advice to cut down on added sugars and fatty meats?  Will they say anything positive about organic foods?

Maybe, if enough people weigh in with such opinions.  Comments are due by July 15.  Here’s how.

Addition, July 10: Amber Healy’s terrific account in Food Chemical News (July 12) summarizes the hearings as “largely boiling down to a single question: Is meat good or bad?” For example:

• People for the Ethical Treatment of Animals, the Physician’s Committee for Responsible Medicine (PCRM), the Soyfoods Association of North America and Christina Pirello, the host of a cooking show on PBS: the guidelines should more clearly spell out the benefits of reducing meat consumption and take a stronger position on the need to reduce intake of processed meats.

• Sally Fallon Morell, president of the Weston A. Price Foundation: the recommended reduction in intake of lean meat and protein from animal sources could “perpetuate the kind of nutrient deficiencies” that the guidelines try to avoid and even lead to lower fertility rates.
• Betsy Booren of the American Meat Institute: If people try to consume the same amount of protein from plant-based foods, people could end up consuming more calories than if they had simply eaten some lean meat or poultry.

And, the National Dairy Council and the International Dairy Foods Association approved of the recommendation for three daily servings of low-fat or fat-free milk or dairy foods, but asked that the final guidelines acknowledge that flavored low-fat milk [i.e. chocolate] can encourage consumption among children.

I’ve heard rumors that some members of the Dietary Guidelines Advisory Committee (DGAC) believe that commentators did not give a fair shake to their recently released report (see previous post).

I complained that the DGAC report is difficult to read because its pieces are presented online in a great many individual pdf files that must be downloaded separately.  Fortunately, Cornell student Daniel Green created a single Web-based file.

I have now read the report, or at least browsed through its 699 pages, and I agree that it is better than it first appeared and deserves a revisit (which I am doing in two parts, the second tomorrow).

As with previous Dietary Guidelines, both politics and science underlie this report.  The science components of this report are stunning—as good as such things get—and make this document an invaluable resource.

Why did everyone, including me, miss this?  Politics, of course.  The politics appear unchanged from previous versions (for that, see Food Politics).

The science in this report gives clear guidance for action.  But the report obfuscates its most important messages.

The Executive Summary makes the advice seem dull. The Summary is the part everyone reads first and often the only part anyone reads.  Try this:

The 2010 DGAC report concludes that good health and optimal functionality across the life span are achievable goals but require a lifestyle approach including a total diet that is energy balanced and nutrient dense…SoFAS (added sugars and solid fats) contribute approximately 35 percent of calories to the American diet….Reducing the intake of SoFAS can lead to a badly needed reduction in energy intake and inclusion of more healthful foods into the total diet.

Obesity, it says, is a big problem.  The food environment is a big problem.  What to do about them?  SoFAS.

The report introduces a new euphemism, SoFAS (Solid Fats and Added Sugars).  The meaning of added sugars is obvious.  But what are solid fats?  For that, you must wait until page 183 (on the Daniel Green file):

Solid fats are fats that are solid at room temperature. Solid fats come from many animal foods and can be made from vegetable oils through hydrogenation. Some common solid fats are butter, beef tallow (tallow, suet), chicken fat, pork fat (lard), stick margarine, and shortening. Foods high in solid fats include many cheeses, creams, ice cream, well-marbled cuts of meats, regular ground beef, bacon, sausages, poultry skin, and many baked goods (such as cookies, crackers, donuts, pastries, and croissants).

Earlier (p. 24), the report listed the principal food sources of SoFAS:

Solid fats (percent of solid fat intake)

• Grain-based desserts, including cakes, cookies, pies, doughnuts, and granola bars (10.9%)
• Regular cheese (7.7%)
• Sausage, franks, bacon, and ribs (7.1%)
• Pizza (5.9%)
• Fried white potatoes, including French fries and hash browns (5.5%)
• Dairy-based desserts, such as ice cream (5.1%)

Added sugars (percent of added sugars intake)

• Soda (36.6%)
• Grain-based desserts (11.7%)
• Fruit drinks (11.5%)
• Dairy-based desserts (6.4%)
• Candy (6.2%)

The report does not say to eat less of these foods; it talks about nutrients.  In various places in the report, the report says [with my comments in brackets]:

• Significantly reduce intake of foods containing added sugars and solid fats because these dietary components contribute excess calories and few, if any, nutrients. In addition, reduce sodium intake and lower intake of refined grains, especially refined grains that are coupled with added sugar, solid fat, and sodium. [Nutrients, not foods].
• Eat less of these: calories from SoFAS, added sugars, solid fats, refined grains, sodium, saturated fat. [Ditto]
• Significantly lower excessive calorie intake from added sugars, solid fats, and some refined grain products. [Ditto]
• Strategies to prevent childhood obesity should include efforts to reduce surplus energy intake, especially energy from foods and beverages that provide empty calories from added sugars and solid fats. [Ditto]
• Intake of caloric beverages, including SSB [sugar-sweetened beverages], sweetened coffee and tea, energy drinks, and other drinks high in calories and low in nutrients should be reduced in consumers needing to lower body weight.  [Only overweight people need to worry about these foods?]

Only once does the report say the clear and simple: “Avoid sugar-sweetened beverages” (p. 65).  Nowhere does it explicitly say to eat less steak, hamburger, French fries, pizza, cookies, or ice cream.

Like previous editions of the Dietary Guidelines, this one talks about foods in the context of eat more (fruits and vegetables).  For eat less advice, it switches to nutrients.  I’d call this obfuscation (and politics).

But the report—for the first time—emphasizes environmental influences on obesity:

The 2010 DGAC recognizes that the current food environment does not adequately facilitate the ability of Americans to follow the evidence-based recommendations outlined in the 2010 DGAC Report. Population growth, availability of fresh water, arable land constraints, climate change, current policies, and business practices are among some of the major challenges that need to be addressed in order to ensure that these recommendations can be implemented nationally.

What business practices?  It doesn’t say.  It does, however, recommend:

• Improve foods sold and served in schools, including school breakfast, lunch, and afterschool meals and competitive foods so that they meet the recommendations of the IOM report on school meals….
• Increase comprehensive health, nutrition, and physical education programs and curricula in US schools and preschools, including food preparation, food safety, cooking, and physical education classes and improved quality of recess….
• Remove sugar-sweetened beverages and high-calorie snacks from schools, recreation facilities, and other places where children gather.
• Develop and enforce responsible zoning policies for the location of fast food restaurants near schools and places where children play….

This is excellent advice.  But how about some suggestions about what individuals might do about it?

The report says little about food marketing.  Beyond “Develop and enforce effective policies regarding marketing of food and beverage products to children…,” the report says virtually nothing about the well documented impact of food marketing on children’s food choices, dietary intake, and health.  Unless I missed it someplace, the research review does not cite the Institute of Medicine’s 2006 landmark report, Food Marketing to Children and Youth: Threat or Opportunity.

It buries the need for policy changes in long wordy lists.  It states the needs for low-income Americans to have access to and afford healthier foods; to produce fruits, vegetables, and grains sustainably; to ensure household food security; to promote sustainable aquaculture; and to encourage the food service industry to serve healthier foods and smaller portions.  It does not—and perhaps cannot—recommend policy changes to achieve these important goals.

Overall, the report contains plenty of material for food, nutrition, and health advocates to work with, but you have to read between the lines to find it.

Recall the process.  This committee’s report is advisory. From 1980 through 2000,  dietary guidelines advisory committees actually wrote the final Dietary Guidelines.   No more.  Since 2005, the sponsoring agencies decide what the Dietary Guidelines will say.

The report is open for public comment until July 8.  If you think the Dietary Guidelines should provide clear, unambiguous advice about how people should eat to avoid obesity and how we can create a healthier food environment, now would be a good time to express your opinion.  Here’s how.

Tomorrow: The reason why this report is an invaluable resource—its science review.

Yesterday, I got a last-minute invitation to listen in on a USDA conference call announcing the release of the report of the joint USDA-DHHS Dietary Guidelines Advisory Committee (see www.dietaryguidelines.gov).

The call was remarkable for how little information it produced.  It was scheduled for half an hour, but started 12 minutes late.  Officials used most of the time to talk about how the committee was appointed, how the committee process worked, how transparent everything was, and how staff of USDA’s new Evidence-Based Nutrition Library (NEL) provided much of the research basis for the guidelines.  This left hardly any time for asking questions, and only five got asked.

From what I heard, the committee report says pretty much what previous accounts said it would (see my post on this).  If my notes on the call are correct, the committee report will recommend:

• Maintain appropriate body weight through diet and physical activity
• Shift to a more plant-based diet
• Eat more seafood; eat more low-fat dairy products; limit meat intake
• Eat less solid fats; eat less of added sugars
• Reduce sodium; eat fewer refined grains
• Follow physical activity guidelines

Is this news?  Isn’t this always what the dietary guidelines say?  Here, just for fun, are the first set of guidelines that came out in 1980.

The main difference seems to be the way the evidence was judged and in some of the details: the target for saturated fat is 7% and for sodium a gradual reduction to 1500 mg/day.

If so, that’s a lot of trouble to go through to get to basically the same place.  I summarized that place in What to Eat as “Eat less, move more, eat plenty of fruits and vegetables, and don’t eat too much junk food.”  Michael Pollen did it even more succinctly: “Eat food.  Mostly plants.  Not too much.”

So why would two federal agencies and 13 committee members go to all this trouble?

The quick answer is that the agencies have to.  Congress says they have to review the guidelines every five years.

The longer answer, which I discuss in Food Politics and What to Eat, is that every word of the dietary guidelines is fraught with politics.

According to Food Chemical News (June 14),

The document is frequently the source of much controversy in the food industry because of the way it is used to promote certain ingredients and eating habits…Observers expect some controversy this year over recommendations made with regard to salt, a subject discussed frequently in committee meetings, as well a possible suggestion to replace two servings of grain with two servings of vegetables.

Another controversy is brewing in regards to the information on which the report was based. On Friday, the American Meat Institute, the National Cattleman’s Beef Association, the Grocery Manufacturer’s Association and the Grain Foods Foundation were among 23 groups that asked USDA and HHS to provide access to the Nutrition Evidence Library, which contains all the research used by the Dietary Guidelines committee when making their recommendations. “Without access to the data from which the DGAC drew its conclusions and recommendations, the public may not be able to provide meaningful comments,” the letter states.

Right. And now let’s see what the agencies do with this report (here’s the USDA press release on what happens next and how to comment).  This report is, after all, merely advisory. Now, the real politics begins!

Additions:

Here is all the information about the Advisory Committee’s report, and the report itself (but why didn’t they put it in one easy pdf file?).

And here is USA Today’s take on it: “Panel: obesity is century’s greatest public health threat.”

Further addition, June 16: Thanks to Daniel Green (Cornell) for putting the report together in one enormous (19MB) file.

After years of hearing sad tales about the slaughterhouse problem, it looks like many people are trying to get it resolved.  A fix no longer seems impossible.

The slaughterhouse problem is what small, local meat producers have to contend with when their animals are ready to be killed. The USDA licenses so few slaughterhouses, and the rules for establishing them are so onerous, that humanely raised (if that is the correct term) animals have to be trucked hundreds of miles to considerably less humane commercial facilities to be killed (see added note below).  Furthermore, appointments for slaughter must be made many months or years in advance — whether the animals are ready or not.

Perhaps because the USDA has just announced guidelines for mobile slaughter units, lots of people are writing about this problem. Here, for example, is what I ran across just last week:

• Joe Cloud, who works with Joel Salatin, writes about the need for small-scale slaughterhouses in The Atlantic.
• The San Francisco Chronicle reports Joe Cloud’s concerns that USDA regulations will put small slaughterhouses out of business.
• Carolyn Lockwood has a front page story in the San Francisco Chronicle about the worries of operators of small slaughterhouses about safety requirements for microbial testing.
• Christine Muhlke writes in the New York Times magazine about her experience observing a mobile slaughterhouse developed by Glynwood’s Mobile Harvest System.
• Marissa Guggiana, president of Sonoma Direct Meats in Petaluma, CA, says in Edible Marin & Wine Country that “in Northern California, the lack of local slaughtering options is at a crisis point.”

If enough people complain about this problem, the USDA might get moving on it.  The guidelines are a good first step.

The guidelines, by the way, are up for public comment.  For comments (or attached files with lengthier comments), go to the Federal eRulemaking Portal.   Be sure to include the agency’s name, USDA, and docket number FSIS-2010-0004.  Comments must be filed within 60 days.

Added note: the USDA has a new study of “Slaughter availability to small livestock and poultry producers — maps” that tells the story at a glance.  Many large regions of the country have limited or no access to slaughterhouses small enough to handle animals from small producers.

By congressional fiat, federal agencies must revise the Dietary Guidelines every five years. This is one of those years.   The 2010 Dietary Guidelines Advisory Committee has been meeting for a couple of years and is now nearly done.

Some unnamed person from the American Society of Nutrition must be attending meetings.  The society’s Health and Nutrition Policy Newsletter (April 22) provides a report.

From the sound of it, this committee is doing some tough thinking about how to deal with “overarching issues” that affect dietary advice:

• The high prevalence of overweight and obesity among all Americans
• The need to focus recommendations on added sugar, fats, refined carbohydrates, and sodium (rather than the obscure concept of “discretionary calories” used in the 2005 guidelines)
• The benefits of shifting to plant-based, rather than meat-based, diets
• The need to help individuals achieve physical activity guidelines
• The need to change the food environment to help individuals meet the Dietary Guidelines

Applause, please, for this last one.  It recognizes that individuals can’t do it alone.

The committee’s key findings and recommendations:

• Vegetable protein and soy protein: little evidence for unique health benefits, but there are benefits, such as added dietary fiber intake, from diets high in vegetable and soy proteins.
• Carbohydrates: a consistent relationship between soft drink intake and weight gain. Overweight and obese children should reduce overall energy intake, especially from added sugars (and especially in the form of soft drinks and sugar-sweetened beverages).
• Fats: mono and polyunsaturated fats, when replacing saturated fats, decrease the risks of heart disease and Type 2 diabetes in healthy adults. No benefit from increased intakes of omega-3 fatty acids above 250-300 mg a day.  Adults should eat two servings of fish per week to obtain omega 3 fatty acids.
• Sodium: decrease sodium intake to 2,300 mg sodium per 2,000 calorie diet to lower blood pressure in adults and children. Since 70 percent of the population is hypertensive, the goal for most individuals should be 1,500 mg per 2,000 calorie diet.
• Potassium: because higher intakes of potassium are associated with lower blood pressure, adults should increase intake to 4,700 mg daily.

Translation: more fruits and vegetables, fewer processed foods, and changes in the food environment to make it easier for everyone to follow this advice.

Next steps: the committee is supposed to complete its report by May 12 and send it to USDA and DHHS. The agencies post the report in June for public comment. Then, agency staff write the guidelines and publish them by the end of the year.

Historical note: prior to 2005, the committee wrote the guidelines.  I was on the 1995 committee and we drafted guidelines that the agencies hardly touched (except to tinker with the alcohol guideline, as I discussed in Food Politics and What to Eat).  The guidelines have always been subject to political pressures, but with the agencies writing them, expect even more.

Let’s hope the committee’s sensible ideas will survive the process.  I will be paying close attention to how the 2010 guidelines progress.  Stay tuned.

I am, as always, indebted to Bill Marler for his ongoing commentary – often with slide shows – on recalls of foods contaminated with E. coli O157:H7 and other nasty bugs.  He offers ongoing comments about the Christmas eve recall of 248,000 pounds of needle-tenderized steaks.

He points out that the recall now affects people in several states and that the meat was intended for several chain restaurants.   The contaminated meat, produced in Oklahoma, has sickened at least 19 people in 16 states.

Mechanically tenderized “non-intact” beef?  Uh oh.  The great thing about intact steak is that harmful contaminants are on the outside surface; the bacteria get killed by the high heat of searing the outside surface.  You don’t have to worry about the safety of intact steak because its insides are relatively sterile.  But if the steak is pre-treated to tenderize it, watch out!  Tenderizing can drive harmful bacteria right into the interior where they won’t get killed unless the steak is thoroughly cooked.

To explain the problem, Marler posts a slide show from Dave Boxrud.  Here is one of Boxrud’s illustrations:

Marler provides links to documents showing that the USDA has received plenty of recent warnings about the dangers of undercooked non-intact beef.  This is no surprise.  In my 2003 book, Safe Food (coming out in a new edition in 2010), I discuss the USDA’s “testing gap” with respect to nonintact beef.  In 1999, the USDA said that it wanted to extend its testing requirements for ground beef to mechanically tenderized beef that might be contaminated with E. coli O157:H7.

In Safe Food, I explain how the beef industry reacted with “shock, disbelief, and anger” to the USDA’s safety proposal.  One industry representative accused the USDA of taking “another step in this administration’s obfuscation of the impeachment activities.” Those activities, of course, referred to the scandal then involving President Clinton and the White House intern, Monica Lewinsky.

Then, the meat industry’s position was that pathogens were inherent in raw meat, cooking kills them, and testing would put the industry out of business. Ten years later, the industry position hasn’t budged. The Washington Post (December 30) quotes beef industry representatives arguing that mechanical tenderizing poses no particular health problems.

According to Food Chemical News (September 28), Congressional representative Rosa DeLauro (Dem-CT), who chairs the House appropriations agriculture subcommittee, has called on USDA to take immediate action to require labeling of meat that has been mechanically tenderized.

And USA Today (December 30) has produced another long investigative report on the safety of school meals, this one citing plenty of examples of companies that successfully produce or serve safe meat and of countries that do food safety better than we do.  In the meantime, the food safety bill is still stuck in Congress.  Let’s hope that it gets moving early in 2010.

Addendum: The New York Times (online December 30) also is interested in beef produced for the school lunch program.  Its reporters investigated safety problems with beef trimmings that had been injected with ammonia to kill bacteria.    Two things about the beef trimmings are especially interesting.  One person is quoted in the article referring to them as “pink slime.”  And they used to be used for pet foods until meat packers figured out that selling them to USDA for school lunches was more profitable.

As for the ammonia treatment: surely this is not the same stuff used to clean bathrooms?  Apparently so.  But using it is tricky.  You have to inject enough ammonia to kill bacteria but if you do the meat smells like an ammonia-treated bathroom.  If you don’t want the meat to smell, you can’t use as much.  But if you don’t use as much, you get Salmonella. This, alas, is another example of regulations not working.

Congress: pass the food safety bill and then start working on a single food safety agency!

Update January 7: The CDC has posted information on its investigation of this outbreak on its website.

What is to be done about E. coli O157:H7?  In the last two years, the USDA reports an astonishing 52 recalls of meat contaminated with these toxic bacteria compared to only 20 in the three years before that.

Apparently, the cattle and beef packing industries are unwilling or unable to produce safe meat, even though they could be doing much, much more to reduce bacterial infections: follow a decent HACCP plan and test-and-hold, for example.

The alternatives?  Late-stage techno fixes.  First, we had irradiation. Now we have vaccination!    Or so said the New York Times last week in a front-page story on two new anti-E. coli vaccines, one actually in use and one still under study.

The vaccines have been in development for a long time but were held up because they aren’t as effective as one would like, to say the least.  They are said to reduce the number of animals carrying toxic E. coli by 65% to 75%.  That should help, but will it solve the problem?

Doesn’t this argue for more efforts on prevention?  Or am I missing something here too?

On November 13, the FDA announced indefinite postponement of rules requiring raw oysters from the Gulf of Mexico to undergo postharvest processing to destroy their content of Vibrio vulnificus, a particularly nasty “flesh-eating” bacterium.  According to accounts in the New York Times and in industry newsletters,  the FDA caved under pressure from the oyster industry and members of Congress representing oyster-harvesting regions in the Gulf.

The FDA has been trying for years to get the oyster industry to clean up its act and use post-harvest technologies to sterilize oysters in order to prevent the 15 or so deaths they cause every year.  The technologies include quick freezing, frozen storage, high hydrostatic pressure, mild heat, and low dose gamma irradiation.  When used, the methods reduce bacteria to undectable levels and deaths from Vibrio vulnificus infections to zero.  As the FDA puts it, “seldom is the evidence on a food safety problem and solution so unambiguous.”

The FDA took action on October 16.  It wrote a letter to the industry announcing the new rules.  It would expect oyster producers to use the techniques, especially on oysters harvested in summer months when bacteria levels are higher.  It also issued a background paper on why the techniques are needed, a fact sheet on oyster hazards, and a Q and A on the new policy.

On October 17, FDA official Michael Taylor gave a speech to the oyster industry outlining the policy.

Oops.  The oyster industry did not take well to the idea and went into organized action.

Now, the proposed rules are history.  As the FDA explains:

Since making its initial announcement, the FDA has heard from Gulf Coast oyster harvesters, state officials, and elected representatives from across the region about the feasibility of implementing post-harvest processing or other equivalent controls by the summer of 2011.  These are legitimate concerns.

It is clear to the FDA from our discussions to date that there is a need to further examine both the process and timing for large and small oyster harvesters to gain access to processing facilities or equivalent controls in order to address this important public health goal.  Therefore, before proceeding, we will conduct an independent study to assess how post-harvest processing or other equivalent controls can be feasibly implemented in the Gulf Coast in the fastest, safest and most economical way.

My interpretation: 15 or more preventable deaths a year, every year, from oyster Vibrio must not be enough to elicit industry responsibility or FDA action.  That the FDA was forced to back down so quickly is not reassuring about this administration’s commitment to food safety.  Make no mistake.  This is a major setback to developing a strong food safety system.

One of the ironies here is that the FDA’s approach to oyster safety mirrored the approach taken by the very same Michael Taylor when he worked for the USDA in the mid-1990s.  Then, the administration backed him up on requiring science-based food safety procedures for meat and poulty producers.  This time, it looks like the administration pulled the rug out from under him and forced the FDA to back down.

Note: Thanks to Mike Taylor, safety rules are in place for meat and poultry.  Unfortunately, the current USDA isn’t enforcing them.  I will have more to say on that point in tomorrow’s post.

Another note: Center for Science in the Public Interest, which has been pushing for oyster safety for years, has organized a protest campaign.  Sign up here.