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How Safe Is Non-BPA Plastic?

Q. I have been concerned about estrogen compounds found in plastic food and water containers. Now that many companies have taken BPA (bisphenol A) out of their products, I am wondering about the replacement chemicals. Are non-BPA plastics really free of hormone-disrupting activity?

A. This is a highly controversial topic with no easy answers. A court battle recently raged in Texas over the question of estrogenic activity in a some non-BPA plastic. Questions were raised about which tests are most helpful in measuring hormone effects.

One study published in Environmental Health Perspectives (online, March 2, 2011) suggested that some non-BPA plastics exposed to detergent or sunlight “release chemicals having EA [estrogenic activity].”

The federal jury in Texas ruled in favor of the Eastman Chemical Company that makes Tritan copolyester material, a substitute for BPA. The conclusion seems to be that plastic made with this compound is free of estrogenic activity. That is reassuring for plastic made with Tritan.

Since it is often hard to determine what chemicals are in your plastic containers, we encourage readers to avoid using plastic in the microwave or washing them in the dishwasher.

You can learn much more about endocrine disruptors and guidelines for avoiding BPA in our hour-long radio shows: Sex Hormone Disruption, Hormone Disruption Part 2, or BPA in Your Soup?

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About the Author
Terry Graedon, PhD, is a medical anthropologist and co-host of The People’s Pharmacy radio show, co-author of The People’s Pharmacy syndicated newspaper columns and numerous books, and co-founder of The People’s Pharmacy website. Terry taught in the Duke University School of Nursing and was an adjunct assistant professor in the Department of Anthropology. She is a Fellow of the Society of Applied Anthropology. Terry is one of the country's leading authorities on the science behind folk remedies..
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