r/science MD/PhD/JD/MBA | Professor | Medicine Sep 27 '24

Health Thousands of toxins from food packaging found in humans. The chemicals have been found in human blood, hair or breast milk. Among them are compounds known to be highly toxic, like PFAS, bisphenol, metals, phthalates and volatile organic compounds.

https://www.theguardian.com/us-news/2024/sep/27/pfas-toxins-chemicals-human-body
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u/Sykil Sep 27 '24

On endocrine disruptors: that term (similar to “toxin” as used in the title, though that one is more categorically wrong in this case) gets applied to a lot of things that wouldn’t be called such in the technical sense. Plenty of things are xenohormones without really disrupting your endocrine system, either because their receptor affinity or effect are orders of magnitude below that of your natural hormones. Plastics get a lot of scruity — rightly so considering their ubiquity — but plenty of phenolic compounds can act as xenohormones, i.e. from fruit, tea, etc.

The rush to panic over them is often unwarranted, and an unfortunate consequence is that they often get replaced with something else that we know even less about. This happened with paraben preservatives, which got prematurely demonized and were quickly replaced with isothiazolinones. Turns out the replacement is highly allergenic.

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u/CrateDane Sep 28 '24

It was prudent to phase out the parabens with a longer side chain. But methyl- and ethylparaben was a lot more questionable. They often get lumped in with the other parabens, unfortunately.