POPCORN
The linings of microwave-popcorn bags may contain a toxic chemical called perfluorooctanoic acid, or PFOA, which is used to prevent the food from sticking to the paper. According to the Environmental Protection Agency (EPA), PFOA is a likely carcinogen. "We don’t know all of the hazardous effects of PFOA yet, but we have some evidence of a link to cancer, as well as to effects on the immune, nervous, and endocrine systems," says David Carpenter, MD, director of the Institute for Health and the Environment at the University at Albany.
WATER BOTTLES
You’ve probably heard that many hard, reusable plastic water bottles could be bad for you because they may contain BPA, or bisphenol A, another endocrine disruptor according to the National Institute of Environmental Health Sciences.
"For adults, the biggest concern with BPA is that it may increase the risk of breast cancer in women and reduce sperm counts in men," says Dr. Carpenter, who explains that BPA can leach out into the water in the bottle. To be safe, sip from an unlined stainless steel or BPA-free plastic bottle.
FOOD STORAGE CONTAINERS
BPA strikes again: Many food-storage containers are made of the hard, clear polycarbonate plastic that may contain BPA. As is the case with water bottles, the BPA can leach out of the plastic in these containers and seep into your leftovers.
"The leaching is increased during heating, but it also leaches to a smaller degree even when cold foods are stored," Dr. Carpenter explains. Glass containers are your safest—not to mention planet-friendly—bet. Both Rubbermaid (at left) and Pyrex make glass ones with BPA-free plastic lids.
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