Bisphenol A Tied to Health Problems
Study Shows Plastic Chemical Linked to Heart Disease, Diabetes; Industry Says No Proof Bisphenol A Is to Blame
Industry Responds continued...
The American Chemistry Council
replied by email with a statement underscoring the limitations mentioned in the
study. Because of those limitations, "this new study cannot support a
conclusion that bisphenol A causes any disease," Steven G.
Hentges, PhD, of the American Chemistry Council's Polycarbonate/BPA Global
Group, states in a news release. "The weight of scientific evidence
continues to support the conclusion of governments worldwide that bisphenol
A is not a significant health concern at the trace levels present in some
consumer products," Hentges states.
The council doesn't totally
dismiss the study, but it sees the study as being "primarily useful for
generating hypotheses that can be tested with more appropriate experiments or
analyses," states the council's news release.
The North American Metal Packaging
Alliance (NAMPA) also emailed a statement, which points out that study
participants only provided one urine sample, and that the body "quickly and
efficiently" eliminates bisphenol A through urine. "To suggest that BPA
concentrations measured at a single point in time during the process of
elimination from the body correlate in any way directly with serious chronic
disorders is entirely unsupported and an unsubstantiated scientific leap,"
states NAMPA, adding that "while the study raises interesting questions, it
provides no scientifically defensible answers" and requires further
The CSPI's Schardt notes that in lab tests on animals, the biggest risks
appeared to be to young animals, but Melzer's team found risks in adults,
including people too old to have been exposed to bisphenol A as kids.
"So that's a mystery: If they were being harmed by BPA, when did this
happen?" asks Schardt.
Like Melzer, Schardt calls for more research.
"One can't expect the government to make a 180-degree turn based on one
study like this," says Schardt. "It underscores the need for more
research on BPA. We need to get to the bottom of this, we need to find out
what, if anything, BPA is doing to us."
Schardt says there's not enough evidence yet to call for a ban on bisphenol
A, but he suggests that parents may want to consider using bisphenol A-free
containers for babies and kids.
As for adults, "you don't really want to make drastic changes in your
lifestyle based on one study," says Schardt. "Of course, people are
free to try to avoid BPA but again, they're not going to avoid it entirely
because it's just everywhere."