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Photograph by Robert Scheer

Marshalling Fields: Watsonville's Sam Earnshaw, a leading proponent for sustainable organic agricultural practices and family farms, is one of the coordinators of the 20th annual Ecological Farming Conference.

Unsafe For Any Seed?

While activists pursue disclosure laws for bioengineered foods, a lawsuit reveals doubts among FDA scientists over biotech food safety

By Ken Roseboro

NEWLY DISCLOSED internal U.S. Food and Drug Administration documents reveal that the agency's own scientists expressed doubts about its policy toward bioengineered foods while raising questions about the foods' safety.

The revelations come at a time when the FDA is under increasing pressure from consumer groups and members of Congress to require labeling of bioengineered foods. Glen Ellen organic farmer Bob Cannard is leading an effort to gather signatures for a statewide ballot initiative requiring such labeling. And this week in Pacific Grove, the Watsonville-based Committee for Sustainable Agriculture is hosting the 20th annual Ecological Farming Conference. Bioengineered foods are high on the agenda. (See sidebar, page 6.)

The FDA documents were released to the Alliance for Bio-Integrity, a coalition of scientists, religious leaders, health professionals and consumers that is suing the FDA to demand mandatory safety testing and labeling of bioengineered foods. A legal brief filed recently by the alliance in U.S. District Court, Washington, D.C., quotes several agency scientists who raised objections in FDA memoranda about the agency's policy before it was established in 1992.

In particular, they challenge the FDA's view that foods developed by genetic engineering are "substantially equivalent" to those produced by traditional plant breeding unless they contain additional synthetic ingredients.

"The agency is not aware of any information showing that foods derived by these new [genetic engineering] methods differ from other foods in any meaningful or uniform way," reads FDA policy, "or that, as a class, foods developed by the new technologies present any different or greater safety concern than foods developed by traditional plant breeding." Under this reasoning, the agency does not require labeling of bioengineered foods, and safety testing is voluntary for the companies that produce them.

But according to Steven M. Druker, executive director of the Alliance for Bio-Integrity and coordinator of the lawsuit against the FDA, numerous agency experts have protested that drafts of the statement of policy ignored the recognized potential for bioengineering to produce unexpected toxins and allergens.

In a February 1992 memo, Louis J. Pribyl, a scientist in the FDA's microbiology group, critiqued a policy draft by writing, "There is a profound difference between the types of unexpected effects from traditional breeding and genetic engineering which is just glanced over in this document." Pribyl added that several aspects of gene insertion "may be more hazardous than traditional plant crossbreeding."

In a January 1992 memo, Linda Kahl, an FDA compliance officer, objected that the agency was "trying to fit a square peg into a round hole [by] trying to force an ultimate conclusion that there is no difference between foods modified by genetic engineering and foods modified by traditional breeding practices.

"The processes of genetic engineering and traditional breeding are different," she continued, "and according to the technical experts in the agency, they lead to different risks." E.J. Matthews of the FDA's toxicology group warned in an October 1991 memo that "genetically modified plants could also contain unexpected high concentrations of plant toxicants."

And in a November 1991 memo to James Maryanski, the FDA's biotechnology coordinator, the FDA's Division of Food Chemistry and Technology raised the issue of testing, cautioning that "it would be necessary to demonstrate that edible seeds and oils produced from genetically engineered plants do not contain unintended potentially harmful substances at levels that would cause concern."

Yet in a recent articulation of the FDA position, Maryanski downplayed the issue of testing, telling the U.S. House Subcommittee on Basic Research on Oct. 19 that "substances added through genetic engineering are well-characterized proteins, fats, and carbohydrates and are functionally very similar to other proteins, fats, and carbohydrates that are commonly and safely consumed in the diet, and so will be presumptively generally recognized as safe."


The Right to Know: Local activists seek input on genetic engineering.


Test Phobia

THE ALLIANCE FOR Bio-Integrity claims the current FDA policy violates the U.S. Food, Drug, and Cosmetic Act, which mandates that new food additives be established as safe through testing before marketing. The FDA claims that bioengineered organisms are exempt from testing because they are "generally recognized as safe" (or GRAS, in FDA shorthand).

According to the U.S. Food, Drug, and Cosmetic Act, foods can be recognized as safe only on the basis of tests that establish their harmlessness. ABI director Druker claims no such tests exist for bioengineered foods.

Two FDA scientists have also emphasized the lack of scientific data to recognize the safety of bioengineered foods.

"Are we asking the scientific experts to generate the basis for this policy statement in the absence of any data?" Linda Kahl wrote in her response to the draft of the FDA policy statement. "There is no data that could quantify risk."

Pribyl agrees. "Without a sound scientific base to rest on," Pribyl wrote in his critique of the FDA draft, "this becomes a broad, general, 'What do I have to do to avoid trouble?' type document."

In his critique, Druker wrote that the FDA was using the GRAS exemption to circumvent testing, "and to approve substances based largely on conjecture that is dubious in the eyes of its own and many experts. Consequently, every genetically engineered food in the United States is on the market illegally and should be recalled for vigorous safety testing."

Citing the lawsuit, the FDA declined to comment to the American News Service about its scientists' objections.

But Philip J. Regal, professor of ecology, evolution and behavior at the University of Minnesota and a plaintiff in the lawsuit, says he knows several FDA scientists who were "disgusted" with the policy.

During the early 1980s, Regal was asked to help the government establish a system of regulating biotech foods. He says his goal was to develop a system that would protect the American public. Instead, he says, policy development favored biotech companies.

"The bureaucrats were under pressure from the White House to help the biotech industry, which was against regulation and thought it would be too expensive," Regal says. "The result was no regulatory system, just a sham."

According to Regal, the FDA knew about the risks of genetically engineered foods before it drafted policy guidelines but decided it was up to the industry to deal with them. He says a common phrase at the time was "If Americans want progress, they'll have to be the guinea pigs."

When he saw genetically engineered foods appearing on the market, Regal says, "It was all I could take," and became a plaintiff in the lawsuit.

Food for Thought: Organic farmer Robert Cannard is pushing for a November ballot initiative that would require labeling of all bioengineered foods sold in the state.

Photograph by Janet Orsi

The Unpredictable

REGAL AND DRUKER say a bioengineered ingredient may be responsible for the tragedy in Minnesota that resulted after people took an L-tryptophan food supplement in 1988. According to Druker, who studied government reports of the incident, the supplement was genetically engineered by Showa Denko K.K., a manufacturer based in Japan. Shortly after the supplement was put on the market, many people who took it became ill with eosinophilia myalgia syndrome, a potentially fatal and debilitating disease.

Thirty-seven people died, 1,500 were permanently disabled and another 4,000 became ill.

While no cause was established, in a September 1991 memo from a meeting with representatives of the Government Accounting Office, FDA biotechnology coordinator Maryanski wrote, "We do not yet know the cause of EMS nor can we rule out the engineering of the organism."

The FDA has imposed severe restrictions on importing or using L-tryptophan because of its suspected association with EMS. "This is the kind of accident you expect from genetic engineering," Regal says.

The process of inserting genes into an organism, Regal adds, can cause mutations to existing genes of the organism, creating toxins.

Another plaintiff, Richard Strohman, emeritus professor of molecular and cell biology at the University of California, said in an interview with the ANS that planting millions of acres of bioengineered crops, as is done in the United States, is "insanity" because the technology can produce unpredictable and possibly negative changes to plants and their environments. "Many, many years of research are needed before we can arrive at any conclusions about how these plants will work," Strohman said.

According to an FDA official who spoke on the record but asked not to be named, the agency gives guidance to manufacturers about safety testing, using a flowchart. The official told the ANS that to ensure consumer safety, "there are a series of steps we want to see the manufacturer do. When they find a problem, they stop production. Companies have an interest in producing a safe product."

The official cited the well-publicized example of Pioneer Hi-Bred's engineering of a soybean using a Brazil nut gene, which was stopped when it was discovered that it would cause allergies in people who are allergic to Brazil nuts. "The system worked," said the official.

However, in his 1992 memo, Pribyl of the FDA criticized this voluntary testing. "Why should companies conduct tests as described in the flow charts if there are no differences between traditional foods and those produced by modern technology?" he wrote. "If industry does not follow these 'should' items, is the FDA going to perform these tests and penalize the companies or does the agency wait for something to go wrong and then act?"

Political Vegetables

THE FDA FACES increasing pressure from consumer groups and, more recently, congressional leaders to change its biotech food policy.

House Minority Whip David Bonior, D-Mich., has urged the FDA to reverse its policy, and Dennis Kucinich, D-Ohio, plans to introduce a bill to require labels on genetically engineered foods.

Last June, a group called Mothers for Natural Law delivered petitions with 500,000 signatures to the FDA demanding safety testing and labeling. Consumers Union, the oldest and largest association of American consumers, with 4.7 million member households, called for the same in its September issue of Consumer Reports. In response, the FDA recently concluded a series of three public meetings to inform the public about its policy for ensuring the safety of bioengineered foods and to ask for input about whether that policy should be changed.

"We're in a listening mode," an FDA spokesperson said. "We want to get information from the American public and want to know if what we're doing is good enough to make people feel comfortable. We will consider everything we hear."

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From the January 19-26, 2000 issue of Metro Santa Cruz.

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