BPA doesn't line just baby products - it is in many canned foods and drinks (Source: Tomomarusan at Wikimedia Commons)
Food-packaging executives and
lobbyists for the makers of the
chemical bisphenol-A, often
called BPA, met in Washington
DC last week to come up with PR
strategies. Their message is:
BPA is safe. Lester Graham reports
someone took notes at that meeting
and then leaked them to reporters:
Transcript
Food-packaging executives and
lobbyists for the makers of the
chemical bisphenol-A, often
called BPA, met in Washington
DC last week to come up with PR
strategies. Their message is:
BPA is safe. Lester Graham reports
someone took notes at that meeting
and then leaked them to reporters:
Lyndsey Layton got ahold of those notes. She reports for the Washington Post.
“According to these notes, they called it the ‘holy grail’ spokesperson would be a pregnant, young mother who would be willing to speak around the country about the benefits of BPA.”
Ironic in that many studies associate BPA with birth defects.
John Rost is the Chairman of the North American Metal Packaging Alliance.
He says the reporters got bad notes. He says it only came up because environmental activists used pregnant women to testify against BPA.
“We discussed that as an option and dismissed it and actually find it a little ironic that we are being criticized.”
Some retailers have taken toys and baby bottles made with BPA off the shelf in response to a consumer backlash.
It’s likely most consumers don’t yet realize the chemical also lines beverage and food cans.
Tomatoes are posing a problem for a BPA-free lining - they are so acidic they can eat through it (Photo by Scott Bauer, courtesy of the USDA)
More than a hundred studies have linked a chemical in plastic to health problems. Things like breast cancer, prostate cancer, diabetes, and early puberty. This chemical, bisphenol-A or BPA, is used to coat the inside of baby formula cans and almost all food and soda cans. Rebecca Williams visits one company that’s found a safer can:
Transcript
More than a hundred studies have linked a chemical in plastic to health problems. Things like breast cancer, prostate cancer, diabetes, and early puberty. This chemical, bisphenol-A or BPA, is used to coat the inside of baby formula cans and almost all food and soda cans. Rebecca Williams visits one company that’s found a safer can:
(sound of forklift backing up, pumpkin seeds pouring out of roaster)
It’s pumpkin seed roasting day at Eden Foods. It’s a natural foods company based in Michigan. It sells things like rice, canned beans, and all kinds of packaged fruits and sauces.
Michael Potter is the company’s president. More than a decade ago, he came across some news reports out of Europe.
“And I learned all the can linings in the USA were lined with this lining that leaches BPA into foods from the can.”
That got him thinking, and researching. Then he started badgering his can manufacturers.
“We virtually begged them to provide us an alternative. We persisted in hounding them and eventually the Ball Corporation said they’d make a can with an old lining they used to make.”
The lining’s made from a plant resin instead of the epoxy resin with BPA. The thing was, it would cost Eden Foods 14 percent more – that’s about 2 cents a can.
But Michael Potter says he had to make the switch.
“We’re selling this not only to people that we don’t know, in the market, we’re feeding it to our children, our grandchildren and ourselves – we didn’t want to eat bisphenol A.”
But there was one problem. He couldn’t make the switch for canned tomatoes.
Tomatoes are acidic, and they can eat through the plant resin can lining. That could lead to bacteria or rust getting into the food.
“There is no alternative for high acid foods other than bisphenol-A lining at this point. We are urging, nudging, demanding a bisphenol-A free alternative. And we’re optimistic we’ll end up with one.”
But the metal can industry says those alternatives just don’t exist right now.
John Rost is with the North American Metal Packaging Alliance. He says the industry is trying to find new materials. But he says shoppers shouldn’t worry about eating canned food.
“The levels of BPA that are coming from epoxy can linings are exceedingly low. We’re talking low parts per billion. That level has been deemed safe by the European Food Safety Authority, Health Canada and the US FDA.”
That’s true, but Health Canada has declared BPA toxic. It’s making moves to limit its use.
A number of independent scientists debate that there’s any safe level of BPA.
Maricel Maffini studies BPA at Tufts University School of Medicine. She says they’ve seen harmful effects on lab animals at the same very low levels of BPA that are leaching into our food from cans.
She says that’s because BPA acts like the hormone estrogen.
“You just need a tiny little signal to trigger an effect. So I think it’s unfair to say there is a safe dose because as scientists we cannot say that yet. We have not found a dose that is low enough where we don’t see effects.”
She says babies and kids are the most at risk. She says BPA has caused lasting damage in lab animals when the animals were exposed to the chemical both before and after birth.
“I think we should be concerned, I think we should limit our consumption of canned foods especially if you are pregnant or if you have babies.”
It’s possible that US can makers will be forced to stop using BPA. Leaders in Congress have introduced bills that could soon ban BPA in all food and beverage containers.
BPA is not only found in plastic bottles, it is also found in the lining of most canned foods (Photo by Ken Hammond, courtesy of the USDA)
A chemical found in plastic might be present in people’s bodies more than previously thought. A number of previous studies suggest that even at very low levels bisphenol-A, or BPA, could be linked to health problems. They range from prostate and breast cancer to early puberty in kids. Rebecca Williams reports:
Transcript
A chemical found in plastic might be present in people’s bodies more than previously thought. A number of previous studies suggest that even at very low levels bisphenol-A, or BPA, could be linked to health problems. They range from prostate and breast cancer to early puberty in kids. Rebecca Williams reports:
Scientists thought our main exposure to BPA was through food because of plastic linings in cans and other containers. They also thought BPA didn’t stay in our bodies very long.
But in this new study, researchers found that people who fasted for 24 hours still had levels of BPA close to the same as people who’d just eaten.
So they think we might be exposed to BPA some other way. Maybe water – some plastic water pipes contain BPA. Or, BPA is staying in our bodies for longer than people thought. Or both.
Dr. Rick Stahlhut is the lead author of the study in Environmental Health Perspectives. He says there are some ways to reduce your exposure from food.
“You’d probably have to get food that was mostly fresh and cook it yourself and try not to use polycarbonate plastic to store food.”
And he says use containers and bottles that don’t contain BPA.
BPA is found in things such as plastic water bottles, canned goods, and baby bottles
(Photo by Ken Hammond, courtesy of the USDA)
Canada has become the first country to
begin the process of banning plastic baby bottles
containing the chemical Bisphenol-A. Environmental
activists are praising the move, but want Ottawa
to go further. Dan Karpenchuk reports:
Transcript
Canada has become the first country to
begin the process of banning plastic baby bottles
containing the chemical Bisphenol-A. Environmental
activists are praising the move, but want Ottawa
to go further. Dan Karpenchuk reports:
Bisphenol-A, or BPA, is just about everywhere – one of most commonly manufactured
chemicals in the world. It’s main use is to make plastics hard and shatterproof.
It’s found in consumer products such as plastic baby bottles, water bottles, C-D cases,
eyeglasses and the lining of tin cans.
Rick Smith is with the group, Environmental Defense. Smith says particularly at risk are
infants.
“So there’s very good evidence that kids that are exposed to it earlier on in life are
more prone to breast cancer, prostate cancer later on in life.”
Research has also linked BPA to heart disease, diabetes, and liver problems. Smith says
BPA is in virtually every tin can in people’s cupboards, and evidence has shown that it
can leach into the food or beverage, even at room temperature.
Health Canada says the levels of BPA most adults are exposed to are not harmful.
But Smith and other environmentalists are calling for a complete ban in consumer
products.
Two government agencies are issuing very different
messages about the safety of a plastic used to package food.
Lester Graham reports:
Transcript
Two government agencies are issuing very different messages about the safety of a plastic used to package food. Lester Graham reports:
The Food and Drug Administration recently declared there’s “an adequate margin of safety” for a plastic called bisphenol A or BPA. But right after that the National Toxicology Program found BPA is of “some concern.”
Sarah Burkhalter is with the online environmental news service Grist-dot-org. She has found there are 115 studies on BPA… and the FDA is chiefly relying on plastic industry studies.
“104 of those were done by government scientists and university labs. 90 percent of them found BPA could harm human health. All eleven of the industry studies found that BPA was safe. So it makes sense that relying on those industry-funded studies that the FDA would find it to be safe.”
BPA is used in all sorts of things, including the linings of cans of food and baby bottles.
Environmental activists are calling for
food packagers to stop using a toxic plastic to
line food and beverage cans. Lester Graham reports:
Transcript
Environmental activists are calling for
food packagers to stop using a toxic plastic to
line food and beverage cans. Lester Graham reports:
The thin plastic lining used in many canned foods and soft drinks contains a chemical
called bisphenol-A.
Canada is taking steps to restrict the use of the plastic in baby
bottles and formula can linings. In the U.S., some retailers have removed some
products using plastic with bisphenol-A.
Aaron Freeman is with the Environmental Defense Fund in Canada. He says this
chemical has been linked to too many health problems to ignore.
“Things like breast cancer, prostate cancer, early puberty in girls, attention deficit
disorder, and so on – those are all health effects we’re seeing sharp rises on.”
Freeman concedes cans lined with plastic containing bisphenol-A have not been proven
to cause the diseases. But he says since the canning industry has other plastics it can
use, it’s just a sensible precaution to stop using plastic with bisphenol-A.
For The Environment Report, this is Lester Graham.
Michaels' book about industry's influence on science. (Oxford University Press)
Bisphenol-A, in bottles like these, is one instance where Michaels says companies are calling for more data, even though the picture is clear (Photo by Rebecca Williams)
There’s a lot of confusion about global
warming. Is it real or not? Are the ingredients
in our food, our soap, the household products we
use all safe? Even if they’re not, there’s a
whole industry that’s working to make you, and
Congress, uncertain. David Michaels recently wrote
about this. His book is titled ‘Doubt is Their
Product: How Industry’s Assault on Science Threatens
Your Health.’ Lester Graham talked with Michaels,
who says companies today base their approach on the
tactics of big tobacco. The tobacco companies
successfully obscured the connections between
smoking and lung cancer for decades.
Transcript
There’s a lot of confusion about global
warming. Is it real or not? Are the ingredients
in our food, our soap, the household products we
use all safe? Even if they’re not, there’s a
whole industry that’s working to make you, and
Congress, uncertain. David Michaels recently wrote
about this. His book is titled ‘Doubt is Their
Product: How Industry’s Assault on Science Threatens
Your Health.’ Lester Graham talked with Michaels,
who says companies today base their approach on the
tactics of big tobacco. The tobacco companies
successfully obscured the connections between
smoking and lung cancer for decades.
David Michaels: “Companies know that by putting off the scientific debate for as many years as
they can, they can keep doing the work that they’re doing and not be disturbed. It works.”
Lester Graham: “We hear about Bisphenol-A in plastics, of course we hear about mercury in fish,
phthalates, even something like dioxin – industry scientists say ‘we’re safe, these are in minute
quantities’ or ‘the jury is out on just how dangerous this chemical is’. If they are dangerous, why
doesn’t the government make that determination and phase these products out?”
Michaels: “Well, right now, the Bush administration has absolutely abdicated its responsibility to
protect the public’s health and the environment. It’s not even a question of phasing them out, the
Bush administration has turned a blind eye, and said ‘we’re not even going to think about those
chemicals’. I’m hoping that as public consciousness of this increases, we’ll have more demand on
regulatory agencies to do something.”
Graham: “You’re very critical of the Bush administration in the book, saying scientific review
boards are stacked with industry officials. Why, or how, does the scientific community continue to
allow that?”
Michaels: “Well, the scientific community doesn’t have the power to stop it. But the scientific
community has me furious about this. And over and over again, not just individual scientists, but
mainstream science organizations, like the American Association for the Advancement of Science,
have issued statements, have passed resolutions complaining, criticizing the Bush administration.
But that’s all we can do. Congress has to stop it. And, the American public has to stop it.”
Graham: “The members of the Bush administration often point out, ‘hey we can’t make knee-jerk
reactions, over some single study, or even a small group of studies, we really need to rely on
sound science, this needs more review’. And it sounds like common sense to many of us.”
Michaels: “Well, when I hear the Bush administration call for ‘sound science’, I see what they’re
doing is calling for something that sounds like science, but isn’t. Bisphenol-A is a great example.
There are well over 100 studies showing that this causes endocrine disorders and reproductive
disorders in laboratory animals. And there are less than a dozen studies that say it doesn’t cause
it. The question we have to ask is: should we be exposing our babies, our children, ourselves to
potentially toxic chemicals that we don’t know that they’re safe?”
Graham: “And Bisphenol-A is, of course, used in plastics, in liners of canned foods, and so forth.
It’s a product that we come across a lot.”
Michaels: “Not only that, the studies are right now that 90% of us have Bisphenol-A in our body.
We can tell that from studies where we’re are excreting it in our urine. So, it’s out there are we’re
being exposed to it. We don’t know what the effects are, but since it causes harm in animals, why
should we be exposing ourselves to it?”
Graham: “You note that journalists are often the victims of their own determination to get both
sides of the story. What are you suggesting? That journalists ignore industry when it questions
studies or scientific method? That would assume that corporations are always bad actors.”
Michaels: “No, but I think it’s very important to note, for example, when an industry scientist
criticizing the study, to note, for example, that, you know, that this criticism is being paid for by the
industry. But the other criticisms, which are, you know, are independent, often paid for by the
government through grants to universities, are independent, and therefore have a lot more validity.
We have example after example, in the book, and all through the medical literature, of companies
that essentially create studies that provide the results they want. In my reviewing it, I’ve never
found a study which disagrees with what the sponsor wanted them to hear. It’s just overwhelming.”
Clear, colored plastic bottles - such as this one - are made of plastic number 7, which contains BPA (Photo by Rebecca Williams)
Recently there’s been a big concern about
bisphenol-A, or BPA, in some plastics.
Some plastic baby bottles and some water bottles have
been pulled from the shelf by retailers. Grist is an
online environmental news outlet. The journalists
at Grist have been looking at the BPA issue for a few
years. We got a chance to talk with Sarah Burkhalter
at Grist about BPA and why it’s suddenly
in the news:
Transcript
Recently there’s been a big concern about bisphenol-A, or BPA, in some plastics. Some plastic baby bottles
and some water bottles have been pulled from the shelf by retailers. Grist is an online environmental news
outlet. The journalists at Grist have been looking at the BPA issue for a few years. We got a chance to talk
with Sarah Burkhalter at Grist about BPA and why it’s suddenly in the news:
Sarah Burkhalter: “BPA has been in our bottles for a long time, and there have just been some
more high-profile studies in the last year. Back in February 2007, the National Institutes of Health
came out with a report saying that there was a link to BPA and health problems. Even at that point,
people were switching over to glass baby bottles and things like that. But just in the same week,
there was another National Institutes of Health high-profile report, just a few days separate from
when Health Canada – the Canadian Health Department – also expressed concern. So, I just think
it was in the news, and people are suddenly realizing that this is a problem.”
Lester Graham: “So, it was a one-two hit in the media, plus when you mention baby bottles, or
possibly the liners of formula cans, that gets people a little nervous, if there’s something toxic in
that stuff.”
Burkhalter: “Absolutely. And, the thing with BPA is that it’s an endocrine disrupter, it can mimic
estrogen. And so the plastics industry has been saying, ‘well, we use it in such small amounts, no,
it’s no problem’. Other studies have said that even in very, very small amounts, BPA can sneak in
and change cell structure, and really muck-up the reproductive system. And it’s been linked to
early puberty, and breast cancer, and behavioral disorders, and all kinds of things. So when they
hear about this being in, you know, things that we’re regularly eating and drinking from, they pay
attention.”
Graham: “Now, here’s the big question – we’ve seen retailers pull some bottles off of the shelves,
there’s been this controversy with Nalgene, and now even a lawsuit against Nalgene about their
plastic bottles – what plastic bottles are safe to use, what ones can’t I use, how do I tell the
difference?”
Burkhalter: “well, BPA is found in number 7 plastic – that’s also known as polycarbonate or lexan –
and that’s the clear, hard plastic. So Nalgene bottles – not the white ones – but the brightly
colored, clear ones. Those are number 7. There’s also, as you mentioned, plastic adhesive in
linings of cans, some of those, BPA is also in some dental sealants. But when it comes to bottles,
number 7 is the one you want to watch out for when we’re talking about BPA. Number 3 has its
own problems – that’s PVC or vinyl – that’s another one you want to watch out for. If you gotta use
plastic, you’re gonna want to look for numbers 2, 4, and 5.”
Graham: “So we look for those numbers on the bottom of the bottle?”
Burkhalter: “Yup. Those are, I mean, you know, they’re not on every plastic, but if there is a
number on them, its ‘2, 4, and 5 to stay alive’. It’s the rhyme I just made up.”
A new study suggests exposure in the womb to chemicals that mimic estrogen could increase the risk of developing breast cancer as an adult. Rebecca Williams reports the study looked specifically at a chemical that’s found in many food containers and plastic bottles:
Transcript
A new study suggests exposure in the womb to chemicals that mimic estrogen could increase the risk of developing breast cancer as an adult. Rebecca Williams reports the study looked specifically at a chemical that’s found in many food containers and plastic bottles:
Bisphenol A has been shown to leach out of food and beverage containers. Scientists are concerned about human exposure to the chemical because it mimics the hormone estrogen.
The new study provides evidence that exposure to estrogen mimics as a fetus increases the risk of developing breast cancer as an adult.
The findings were based on animal studies in rats.
Dr. Ana Soto is an author of the study in the journal Reproductive Toxicology.
“We used to think that the womb was a pristine environment. And we know now that it is not a pristine environment anymore. And I think we should be terribly concerned about that.”
Soto says the rates of breast cancer in the US and Europe have increased over the past 50 years. She says fetal exposure to estrogen mimics could be the underlying cause of that increase.
BPA doesn't line just baby products - it is in many canned foods and drinks (Source: Tomomarusan at Wikimedia Commons)
