Unknown-1WhiteWave Foods says it will remove an ingredient from Horizon milks and Silk beverages in response to customer feedback.

Carrageenan, a seaweed extract that is used as a thickener and emulsifier, will be phased out from Horizon and Silk products over time, said Sara Loveday, a company spokeswoman.

The ingredient has been the subject of criticism in some circles, with natural-food advocates pointing to animal studies that suggest it causes gastrointestinal inflammation and other problems.

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