Bpa-free Plastic Just As Dangerous As One With Bpa

haidut

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The dangers of the so-called plasticisers are well-known and have been known for decades. Despite the extensive research, FDA refuses to ban these chemicals that are banned in many other countries. I recently posted a study on the mechanism through which the plasticisers cause damage.
Plasticisers (bpa, Dehp) Boost Pufa, Estrogen, Cortisol & Block Glucose Oxidation | Ray Peat Forum

If you remember anything about these plasticisers let it be these two things - they are stronger estrogen agonists than estradiol and stronger thyroid antagonists that the fluoride drugs used for hyperthyroidism conditions.

The plastic industry tried to throw some dust in the public's eyes by switching to BPA-free products, but those contains the related chemical BPS, which (as the study below shows) is just as dangerous.

Chemical used to replace BPA in plastic accelerates embryonic development, disrupts reproductive system
"...However, bisphenol S, or BPS, a common replacement for BPA in plastics, has also been linked to health risks. New UCLA-led research demonstrates some of the mechanisms that make BPS just as harmful as BPA. The study found that BPS speeds up embryonic development and disrupts the reproductive system in animals. Reported in the Feb. 1 edition of the journal Endocrinology, the study is the first to examine the effects of BPA and BPS on brain cells and genes that control the growth and function of organs involved in reproduction. “Our study shows that making plastic products with BPA alternatives does not necessarily leave them safer,” said Nancy Wayne, the study’s senior author, a reproductive endocrinologist and professor of physiology at the David Geffen School of Medicine at UCLA. “Our findings are frightening — consider it the aquatic version of the canary in the coal mine.”"
 

Ras

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If one cannot avoid plastics altogether, and it is unknown what additives companies put into their proprietary plastic formulas, which plastics can be considered the least worst?
 

meatbag

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If one cannot avoid plastics altogether, and it is unknown what additives companies put into their proprietary plastic formulas, which plastics can be considered the least worst?

I think HDPE is okay....except...

" For example, one unstressed sample of an HDPE resin (P5 in Table 3) that had no detectable EA (i.e., RME2 < 15%) in two saline extracts and two EtOH extracts released chemicals with EA equivalent to 47% RME2 when extracted using EtOH after the resin was stressed with UV light. Similarly, two samples of low-density PE resins (LDPE resins 1 and 2) and PETG resins (PETG baby bottle and PETG resin 1) that had no detectable EA before stressing subsequently exhibited EA when stressed, especially by UV

"Many scientists believe that it is not appropriate to bet our health and that of future generations on an assumption that known cellular effects of chemicals having EA released from most plastics will have no severe adverse health effects (Gray 2008; Talsness et al. 2009; Thompson et al. 2009). Because we can identify existing, relatively inexpensive monomers and additives that do not exhibit EA, even when stressed, we believe that plastics having comparable physical properties but that do not release chemicals having detectable EA could be produced at minimal additional cost."

Most Plastic Products Release Estrogenic Chemicals: A Potential Health Problem That Can Be Solved

Whose down to join on for my plastic company...Peaty Plastics®?:tearsofjoy:
 

Fractality

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Jan 23, 2016
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I believe that the harmful effects of the plastics are amplified when the liquid within is hot and/or acidic.

I wonder if it would it be worth it to transfer the liquids (milk, oj, etc) commonly stored in plastic containers to a glass one?
 

Ras

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I think HDPE is okay....except...

" For example, one unstressed sample of an HDPE resin (P5 in Table 3) that had no detectable EA (i.e., RME2 < 15%) in two saline extracts and two EtOH extracts released chemicals with EA equivalent to 47% RME2 when extracted using EtOH after the resin was stressed with UV light. Similarly, two samples of low-density PE resins (LDPE resins 1 and 2) and PETG resins (PETG baby bottle and PETG resin 1) that had no detectable EA before stressing subsequently exhibited EA when stressed, especially by UV

"Many scientists believe that it is not appropriate to bet our health and that of future generations on an assumption that known cellular effects of chemicals having EA released from most plastics will have no severe adverse health effects (Gray 2008; Talsness et al. 2009; Thompson et al. 2009). Because we can identify existing, relatively inexpensive monomers and additives that do not exhibit EA, even when stressed, we believe that plastics having comparable physical properties but that do not release chemicals having detectable EA could be produced at minimal additional cost."

Most Plastic Products Release Estrogenic Chemicals: A Potential Health Problem That Can Be Solved

Whose down to join on for my plastic company...Peaty Plastics®?:tearsofjoy:
Great. Thank you.
 

papaya

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Mar 2, 2016
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i went to a special dentist to get diamond lite/diamond crown fillings that r supposed to be a safe plastic but i'm sure that they're not. plus the dentist didn't didn't cure it properly and i tasted plastic for 3 days!
 

paymanz

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Jan 6, 2015
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i wonder what type of coke peat drinks, the ones in cans or plastic bottles?!
 

meatbag

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.
 
Last edited:

MB50

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Mar 2, 2016
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What does it take to cause leeching from a plastic product that can enter the bloodstream? Im guessing some sort of heat or moisture would be required? Can simple contact and the human body temperature cause absorption?

Also, any thoughts on using a clear dental retainer at night? Seems like enzymes and friction from grinding may be able to cause leeching from the plastic.
 

rei

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Aug 6, 2017
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PEN is probably the safest plastic but it is not very widely used.
 

Lilac

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May 6, 2014
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What does it take to cause leeching from a plastic product that can enter the bloodstream? I'm guessing some sort of heat or moisture would be required?

I remember reading somewhere that refrigerating a plastic bottle of water created more problems than leaving it at room temperature. So not just heat would be a problem. (I have no sources or specifics for that, so take that with a grain of salt.)

Why doesn't a water company like Poland Spring, which has home delivery, offer the glass water coolers of old? I remember visiting my relatives in California in the 1970s, and they had Sparkletts water delivered, in heavy glass vessels. Heck, even my office in New York had glass water coolers in the 2000s.
 
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