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From the April 2001 Scientific American Magazine | 1 comments

The Risks on the Table ( Preview )

More than half the foods in U.S. supermarkets contain genetically modified ingredients. Have they been proved safe for human consumption?

By Karen Hopkin   

 
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A farmworker crouches in the hot Texas sun, harvesting celery for market. That evening, painful

red blisters erupt across his forearms. The celery--a newly developed variety prized for its resistance to disease--unexpectedly produces a chemical able to trigger severe skin reactions.

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