Taco shells are made from corn tortillas and filled with beans or meals.

墨西哥卷饼的外壳是由玉米玉米饼制成的，里面填满豆子或燕麦粉。

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Millions of bushels of genetically modified corn, approved for animal feed but not for human consumption, turned up in Taco Bell taco shells and other food products.

数百万蒲式耳玉米，本是只准用作动物饲料，不准人吃，但却出现在塔考贝尔玉米卷壳及其他食品中。

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It's recalling all of its Taco Bell brand taco shells because they were found to contain genetically engineered corn not approved for human consumption.

FORBES: Kraft Recalls Taco Bell Shells Sold In Grocery Stores

The taco shells were manufactured by Sabritas Mexicali, a wholly owned subsidiary of PepsiCo (nyse: PEP - news - people ), in Mexicali, Mexico.

FORBES: Kraft Recalls Taco Bell Shells Sold In Grocery Stores

Last year, traces of Aventis's StarLink corn, a genetically engineered variety not approved for human consumption, showed up in taco shells and other foods and this led to a series of expensive recalls.

FORBES: Bayer And Aventis Get Chummy