This blog is no stranger to the topic of bisphenol-A (BPA). The
chemical is considered the most common form of polycarbonate plastic, and is
largely found in #7 plastic materials and as an antioxidant in plasticizers for
#3 plastics. BPA is an endocrine disruptor, which may mimic the body's hormones
and lead to negative health effects through chemical leeching from the plastic
into the body.
Although the U.S. Food and Drug Administration (FDA)
declared plastics containing BPA to be safe in 2008, the chemical has been
credited with a number of human health aliments ranging from increased estrogen
receptors in the body to neurological issues. In 2009, The Endocrine Society
released a scientific study expressing concern about the current rate of human exposure
to BPA. Basic research on the topic of BPA points to a number of other issues
related to this chemical as well.
A More Aggressive
FDA?
Increasing numbers of medial reports and studies, like the
one from The Endocrine Society, have continued to bring the issue of BPA
leeching to light. A study of over 2,000 people found that 90% of participants
had BPA in their urine. Traces were also found in breast milk, the blood of
pregnant women, and umbilical cord blood. The study also fueled another aspect
of this massive health debate – that babies were even being exposed to BPA in
the womb.
Last Friday, January 15th, the FDA said that it had
"some concern about the potential effects of BPA on the brain, behavior and
prostate gland of fetuses, infants and children." The FDA also said it would be
joining other federal health agencies in studying the chemical effects on animals
and humans; however, the agency still maintains that there is no proof that BPA
is dangerous to humans.
Ch-Ch-Cha-Changes
(Maybe)
The U.S.
government will spend $30 million to research BPA's effects on humans and
animals. This study will take place over 18-24 months. The research will include
effects on human behavior, obesity, diabetes, reproductive disorders, cancer,
heart disease, asthma, and generational effects. Additionally, the FDA is
considering changing it's classification of BPA from "food additive" to "food contact
substance." The new classification would allow the agency more power - and the
ability to act quickly if needed.
After fighting the good fight against BPA for a couple of years,
I was surprised to learn about the FDA's new concern over this chemical. Of
course, so much has happened since I first wrote about BPA. People have
protested. Companies have changed their manufacturing processes (Nalgene
bottles no longer contain BPA!) and even recalled items containing BPA. Yet it
still took this long. Better late than never?
Resources
http://www.nytimes.com/2010/01/16/health/16plastic.html
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