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When picking up tomato sauce or paste, choose the glass jar or box over the can. "The lining on the inside of food cans that’s used to protect against corrosion and bacteria may contain BPA," explains Cheryl Lyn Walker, PhD, a professor of carcinogenesis at MD Anderson Cancer Center and past president of the Society of Toxicology.
In 2009, Consumer Reports tested BPA levels in a variety of canned foods and found it in nearly all of the brands tested, suggesting that the chemical leaked in. "What can happen is that BPA in the lining can leach into the food," Walker explains.
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