One would think that common sense could have eliminated this possibility before it even got started. Seeing so many acquaintances receive a cancer diagnosis and watching some of those die, I have come to believe that the excessive number of man-made chemicals that now dominate our environment plays at least some role in what seems like ever increasing numbers of people thus afflicted. A Science News article from April 4, 2015 caught my eye as I was wondering what I might write about today. The headline read –
“Doubts grow over BPA replacement – Bisphenol S poses the same health risks, researchers suggest” by Beth Mole in the Earth & Environment section.
The illustration that accompanies the article compares the two noting their similar chemical structure and that both have the SAME hormone-disrupting effects on animal cells.
So manufacturers have been able to honestly claim “BPA FREE” but that reassurance seems to have been deceptively unfair to consumers. One would think the chemists should have known better. I simply am not able to trust the chemical industry in general any more. Of course, I know chemicals are important and necessary and that some are even “natural” and “organic” (and I can “trust” those to be what they are at least). Just this past week I posted a reply from my Missouri R Senator Roy Blunt that was mighty slow in coming, and as politicians are wont to do uses a lot of words that look good but don’t really say all that much, as a comment on another blog here – “What Happened to Good Intentions ?” published here on Feb 2nd of this year.
The author of the Science News piece concludes that “Chemical tweaks aren’t enough to tame a possibly dangerous component of plastics, two new studies suggest”. The difference between BPA and BPS are in how the ring structures are linked together – by a carbon atom attached to two methyl groups for BPA and by a sulfur atom attached to two oxygen atoms for BPS. BPS has been used as a replacement for BPA in paper receipts since concerns about cashiers and waiters handling these so frequently arose. Regrettably, even back in 2012, 81% of people who were tested had detectable amounts of BPS in their urine.
Most likely it was the least expensive approach to growing consumer boycott’s of containers using BPA. One of the studies goes so far as to admit – “. . . products labeled ‘BPA-free’, such as baby bottles, are not as free of health risks as consumer might expect.” What’s there to worry about ? Researchers found that BPS, just like BPA, can boost heart rates and spur irregular heartbeats in female rats. Heart cells in male rats block certain estrogen signals – it’s known if that would hold true with humans. A pharmacologist involved in the heart study commented that the two chemicals “are nearly indistinguishable, if not identical”, in their effects.
A separate study found that BPS, just like BPA, can alter brain development and behavior in zebrafish. Embryonic fish exposed to levels of BPS similar to the low levels of BPA found in nearby waterways were hyperactive and zooming around their tanks in circles. BPA exposure in humans has been linked to behavioral changes that include hyperactivity.
Previous reports had already reported the same estrogen mimicking effects with BPS as with BPA in both humans and other animals. Three years ago Mercola.com published warnings about BPS in an article posted online (see Information Resources at the end of this blog). While the potential human health hazards of BPS’s estrogen-mimicking effects remain unknown – BPA has been linked to obesity, cardiovascular disease, cancer, infertility, neurological problems and asthma. And there is more troubling news – even though the Food and Drug Administration banned the use of BPA in baby bottles in 2012, there are few other restrictions on its use in the United States and the use of BPS is not restricted at all at this time.
Without naming BPS, the Environmental Defense Fund notes on its “Four Reasons ‘BPA-free’ won’t protect you” page – “When BPA is removed, it’s often replaced with a similarly dangerous chemical. This is known as ‘regrettable substitution’, and there’s no one charged with ensuring replacements are any safer.” And the EDF goes on to note – “Regrettable substitution is a problem not just for BPA, but thousands of chemicals.” because “. . . the Toxic Substances Control Act, is nearly 40 years old and ineffective. Unlike prescription drugs, companies can sell and use chemicals without showing they’re safe.” You can sign a petition about that at the link for the EDF in the Information Resources section at the end of this blog.
Dr Mercola suggested – “If you’re interested in avoiding any number of chemical toxins leaching into your food and beverages, choose glass over plastic, especially when it comes to products that will come into contact with food or beverages, or those intended for pregnant women, infants and children. This applies to canned goods as well, which are a major source of BPA (and possibly other chemicals) exposure, so whenever you can, choose jarred goods over canned goods, or opt for fresh instead. Another good idea is to ditch plastic teething toys for your little ones and choose natural wood or fabric varieties instead.”
Another possibility is to buy as much as you can in aseptic packaging. Tetra Pak offers a diagram of their package materials, very simple like “basic ingredients” – polyethylene, aluminum and paperboard.
Dr Mercola did admit – “To be fair, you probably can no longer completely eliminate your exposure to BPA, BPS and similar toxins (since they’re likely in our air, water, and food, too) but you can certainly reduce your exposure dramatically by making informed choices like those described above.” Remember – back in 2012, 81% of those tested were already “positive” for the presence of both BPA and BPS – sadly.
~ Information Resources
“Doubts grow over BPA replacement – Bisphenol S poses the same health risks, researchers suggest” by Beth Mole posted March 9, 2015 at ScienceNews.org – https://www.sciencenews.org/article/replacement-toxic-chemical-plastics-receipts-may-be-just-toxic?mode=topic&context=65
“What Happened to Good Intentions ?” by Deborah Hart Yemm posted Feb 2, 2015 at What’s New in Eco-Materials – Exploring the Complexities of Environmental Choices – http://wp.me/p3XHLm-bS
“Four reasons ‘BPA-free’ won’t protect you – Plus: What you can do to make sure hazardous chemicals are properly regulated” at the Environmental Defense Fund website – http://www.edf.org/health/four-reasons-bpa-free-wont-protect-you
“BPA-Free Products Still Contain Bisphenols of Equal Toxicity” posted by Dr Mercol on June 20, 2012 at Mercola.com – http://articles.mercola.com/sites/articles/archive/2012/06/20/bpa-free-plastic-still-toxic.aspx
“NEW – Amber Glass Jars of EDEN® Organic Tomatoes & Sauces” – http://www.edenfoods.com/articles/view.php?articles_id=191
Tetra Pak Packaging Materials, Aseptic Carton – http://www.tetrapak.com/packaging/materials
“7 Companies You Can Trust to Use BPA-Free Cans” by A K Streeter at treehugger.com posted March 2, 2010 – http://www.treehugger.com/green-food/7-companies-you-can-trust-to-use-bpa-free-cans.html (author’s comment – I’m not sure that “trust” is an appropriate word any more . . .)
Blog author ~ Deborah Hart Yemm is co-founder of
Yemm & Hart, a green materials producer