USDA Guidelines Questioned

  • Professor Paul Marantz says even a small error in the federal food guidelines can have a big public health impact. (Photo courtesy of the USDA)

Some people say the government is partly to blame for America’s obesity problem – because of the federal dietary guidelines. Julie Grant reports on efforts to improve how the government offers nutritional advise to Americans.

Transcript

Some people say the government is partly to blame for America’s obesity problem – because of the federal dietary guidelines. Julie Grant reports on efforts to improve how the government offers nutritional advise to Americans.

You’ve probably seen those colorful food pyramids they put out, the ones that tell you how many servings to have of each kind of food each day. Those recommendations are used by schools, nursing homes, and the federal food stamp program to design menus.

Robert Post works with the U.S. Department of Agriculture, which puts out the food pyramid.

“IT’S THE CORNERSTONE FOR BUILDING HEALTHY EATING PATTERNS. CHOOSING THE RIGHT AMOUNTS OF FRUITS, VEGETABLES, GRAINS, MILK PRODUCTS, AS WELL AS PROTEIN SOURCES SUCH AS MEAT AND BEANS.”

Post says people need to know how to get all the nutrients they need, without over-indulging in foods they don’t need.
That’s why the guidelines also set specific limits on things like salt and fat.

But some researchers think the guidelines actually have the potential to cause harm.

Paul Marantz is professor of epidemiology and population health at the Albert Einstein College of Medicine.
He doesn’t think the guidelines should give specific recommendations about how much fat and salt people should eat.

“THOSE SEEM TO CARRY PRECISION THAT IMPLIES THAT WE HAVE A GREATER DEPTH OF KNOWLEDGE THAN WE ACTUALLY DO, SO PICKING THESE NUMBERS AND REQUIRING THAT PEOPLE HUE TO THESE GUIDELINES IS A PROBLEM.”

Marantz says even a little bit of error in the food guidelines can have a big public health effects.

He and his colleagues wanted to find out the potential impact of past dietary guidelines.

They looked at 1995, when the nutritionists were telling people to avoid fat.

“MOST OF US REMEMBER IN THE OLD FOOD PYRAMID THAT MADE IT QUITE CLEAR THAT THE MOST IMPORTANT THING TO AVOID WAS FAT AND ONE COULD EAT GRAINS AND PASTA AND BREAT AND THE LIKE WITHOUT CONCERN.”

Marantz says Americans did eat more pasta and bread – that added lots of calories, and lots of weight.

His research, which was published in the American Journal of Preventive Medicine, found what Marantz calls a ‘strong correlation’ between the dietary guidelines against fat and obesity in Americans:

“CORRELATION IS BY NO MEANS CAUSATION. WE CANNOT INFER FROM THIS THAT IT WAS BECAUSE OF DIETARY GUIDELINES THAT WE ARE EXPERIENCING THE EPIDEMIC OF OVERWEIGHT AND OBESITY. BUT THE CONNECTION IS STRONG.”

Marantz wants the government to give general advice for healthy eating, but not specific guidelines. He gives the example of sodium. Marantz says no one really knows how much salt is appropriate for each person. But there’s a push to put specific limits on sodium in the new guidelines.

Robert Post of the USDA says anything that gets into the 2010 recommendations will be based on what he calls the Gold Standard of scientific evidence. He says a committee of nutritional experts has been meeting for two years to create the new guidelines…

“WE CAN BE ASSURED THROUGH THIS VERY INTENSIVE REVIEW OF SCIENCE AND THE WEIGHT OF THE EVIDENCE IT PROVIDES THAT THE CURRENT ADVISE ON CARBOHYDRATES FOR EXAMPLE IS BASED ON THE LATEST RESEARCH.”

Post says any recommendations for fat and sodium will also be based on the preponderance of current science. The committee is expected to make its recommendations this summer, and new dietary guidelines should be published by the end of the year.

For The Environment Report, I’m Julie Grant.

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Overestimating the Organic Label

  • The "organic" label means that food's grown without synthetic fertilizers and pesticides, but Lee says some shoppers think it means "healthy" in other ways.(Photo courtesy of Mica M CC-BY-SA)

Researchers have known for a while that food labels, such as “low in fat,” can mislead dieters into thinking they’re eating healthy. Shawn Allee reports the “organic” label could lead dieters astray, too.

Transcript

Researchers have known for a while that food labels, such as “low in fat,” can mislead dieters into thinking they’re eating healthy.

Shawn Allee reports the “organic” label could lead dieters astray, too.

Cornell University ran an experiment to look at how people think about food made with organic ingredients.

One researcher was Jenny Lee.

Lee gave people cookies – some were labeled organic, some not.

Then people guessed the calorie count.

“We found that those who ate cookies with the organic label rated those cookies to be lower in calories than those who ate cookies without the organic label.”

Actually, they were exactly the same cookies: organic Oreos.

The “organic” label means that food’s grown without synthetic fertilizers and pesticides, but Lee says some shoppers think it means “healthy” in other ways.

“You have to be a little suspicious about what the label’s actually claiming and not to draw any other inferences.”

Lee says people need to think about what they expect from food labeled “organic,” since organic products are becoming common in mainstream grocery stores.

For The Environment Report, I’m Shawn Allee.

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Part 2: Choices in the Cafeteria

  • The Shaker Heights School District in Ohio now serves smoothies, salads, even sushi. But students say they still prefer ice cream and french fries. (Photo by Julie Grant)

When we hear about kids and obesity,
a lot of people point the finger at
schools. Most kids today eat about
half their meals at school, and many
cafeterias are filled with junk food.
In the second half of our school lunch
series, Julie Grant reports that some
districts are trying to improve what
they serve – but there are a lot of
challenges:

Transcript

When we hear about kids and obesity,
a lot of people point the finger at
schools. Most kids today eat about
half their meals at school, and many
cafeterias are filled with junk food.
In the second half of our school lunch
series, Julie Grant reports that some
districts are trying to improve what
they serve – but there are a lot of
challenges:

(sound of a school cafeteria)

The food available in school in Shaker Heights, Ohio looked a lot different a few years ago. They used to sell lots of pop and French fries. Today, we’re standing at what’s called the Nutri-Bar. Students can buy salads, sandwiches, even sushi.

“Fresh, healthy and portable. That’s the motto of the Nutri-Bar. This has been a big hit with our students.”

Peggy Caldwell is spokesperson for the school district. She says a group of parents started worrying about national obesity and diabetes rates among children and pushed for the change.

“They want us to provide healthy choices. They want us to provide nutritious meals. They understand that students learn best if they are healthy and well fed.”

Parents worked with the district to improve the food available in the schools.

(school bell)

“And, here they come.”

It’s lunchtime. Students are packing into the cafeteria.

(sound of a blender)

A few girls order fruit smoothies at the snack bar.

(sound of students in line)

But the line is much longer for the hot meals. Cheeseburgers and pizza are always on the menu. Today’s special: chicken strips and mashed potatoes. That might sound like a lot of fat and salt, but Caldwell says it’s actually pretty healthy.

“The chicken strips are baked now, they’re not fried. The potatoes are baked or, if they’re mashed potatoes, they’re made with low fat milk. There’s less sodium. They may look the same, but they’re better for you than they used to be.”

Caldwell says they’re starting to make pizza with whole wheat crust and the pasta is all whole grain.

But serving healthier food has cost the district. They had to buy ovens so they could bake. They have to pay more for labor to chop vegetables and make smoothies. And the food, itself, costs more. Fruits and vegetables come at a higher price than those processed foods that are high in sugar, fat and salt.

Especially in schools. Schools can actually get 15% to 20% of their food for free through the U.S. Department of Agriculture.

Janey Thornton is undersecretary for food and nutrition at the USDA. She says when farmers have too much of, say, blueberries or green beans or ham, the USDA buys those commodities for schools.

“If we have an abundance of blueberries – in order to stabilize the market, to keep prices near where they should be, then those products are purchased by the federal government.”

Then the government offers those blueberries for free to schools. That sounds might sound like a win-win – helping farmers and schools. But lots of times those berries are processed into unhealthy things – like glazed blueberry snack pies – before they get to schools.

Peggy Caldwell says the government food presents a challenge. Schools can’t afford to turn down free food. But it’s often high in salt and fat, and at odds with her district’s efforts to provide healthy lunches.

“It’s not always consistent with the nutritional guidelines. It can be a challenge for a staff to use in a way and in quantities that really meet the health requirements we’re trying to meet for our students.”

Some critics have gone so far as to call the schools garbage disposals for un-sellable farm commodities. Janey Thornton with the USDA scoffs at that suggestion.

“I would love to have that garbage disposal in my home, in my freezer if that were the case.”

Thornton worked 25 years in school nutrition at a local district before coming to the USDA. She says the ground meat has gotten leaner, the canned fruit is now healthfully packed in a very light syrup.

(sound of a cafeteria)

For those that disagree, debating the federal government might seem like a huge undertaking. But there maybe even tougher tasks for schools encouraging healthful eating, like Shaker Heights.

Grant: “What are you having for lunch?”

Student: “Ice cream. Chocolate. Soft serve. It’s really good.”

For The Environment Report, I’m Julie Grant.

Related Links

Can Agriculture Keep Up?

As of this month (Oct.), there are six billion people on the planet and
the population will keep rising. It’s predicted the population will hit
eight-and-half billion by the year 2025. But some experts say the demand
for food will rise even faster. The Great Lakes Radio Consortium’s
Lester Graham reports… feeding the world will be one of the biggest
challenges of the coming century: