FDA panel rejects need for warnings on food coloring

An expert advisory panel to the Food and Drug Administration said Thursday that there was not enough scientific evidence linking artificial colors with hyperactivity to warrant a warning label or new restrictions on thousands of processed foods colored by chemicals.

The 14-member panel struggled with the question, rejecting the idea of warning labels by a margin of 8 to 6.

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The Food and Drug Administration is reconsidering the impact of food dyes and its possible link to worsening ADHD in children. (March 30)

The Food and Drug Administration is reconsidering the impact of food dyes and its possible link to worsening ADHD in children. (March 30)

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“If we put a label that long on every chemical and ingredient that hasn’t been adequately studied . . . you wouldn’t see the package anymore,” said Tim Jones, Tennessee’s deputy state epidemiologist and a member of the panel. “It’s a question of relative concern and severity, and that’s a hard one.”

The panel recommendation makes it less likely that the FDA will place restrictions on food dyes. The agency is not obligated to follow the guidance of its advisory panels but often does.

On a separate question — whether there is enough scientific data to conclude that artificial coloring causes hyperactivity among the general population — a majority of the panel said there was not such evidence. The panel advised the FDA to pursue additional studies.

The recommendations came after a two-day discussion of the science behind artificial food dyes and hyperactivity, which has been a matter of debate since the 1970s.

The United States allows food makers to use nine dyes, most of which were approved 80 years ago. The FDA has long maintained that the dyes are safe.

But new research and a petition from the Center for Science in the Public Interest, an advocacy group, prompted the FDA to reassess whether color additives might be linked to hyperactivity in children and other health effects.

For the first time, FDA staff said Thursday that studies suggest artificial dyes may exacerbate problems for some children who already have attention deficit and hyperactivity disorder. About 5 percent of U.S. children suffer from the disorder, according to federal estimates.

Lisa Lefferts, a panel member and an environmental health consultant, acknowledged the lack of strong data but argued that federal regulators ought to do something more to protect public health. “We’re seeing something here with color additives, there’s something going on,” she said. “Are we going to wait for another 50 studies to be done before we reach any conclusions?”

Still, Barbara Blakistone, a food scientist who represented the food industry on the panel, said there was not enough evidence to justify restrictions.

Those restrictions would require “all the stops [to be] pulled, massive reformulation, massive changes in re-labeling,” she said. “We want to feel that the general public would benefit from this, and I’m not seeing that right now.”

The use of artificial food dyes has increased 50 percent since 1990, and the bright hues are found in everything from pickles to bread. Once made from coal tar but now derived from petroleum, artificial dyes are brighter, more stable and cheaper than natural colors derived from fruits and vegetables.

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