A survey reports that only some major food companies are using packaging alternatives that don't contain bisphenol A, which is suspected of causing health problems including cancer and heart disease. While all major baby-bottle makers in the U.S. have vowed to cut out BPA, food companies have been slower to take action. Heinz, Hain Celestial and Nestle say they plan to gradually stop using the chemical; Del Monte, Hershey and J.M. Smucker have not acted.

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