Customers queue up in a McDonald's in Yichang, Hubei province on May 3, 2010. [Asianewsphoto]
China's State Food and Drug Administration is monitoring McDonald's China Co's McNuggets as the product contains the chemicals tertiary butylhydroquinone and dimethylpolysiloxane.
The additives are allowed in meat products in limited amounts, the administration said in a statement on its website.
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