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Comment Not a revolution (Score 2) 13

I guess that explains the huge interpersonal variation on PFAS excretion in feces. Everyone's liver excretes a small amount of PFAS in bile, some people have gut bacteria that absorb it, other people reabsorb the PFAS from the intestine.

Not sure this will be a big change for PFAS decontamination, as the PFAS must first be excreted by liver, and it seems it is not a very efficient process.

Comment Re:so (Score 2) 6

what percentage of life do i get by ruining it? I like beef and alcohol so I need an answer.

You face a statistical problem. Even if we find convergent studies concluding your habits give you a X% increase of dying before age N, that will not tell you when you will die. You could be lucky and get in the (100-X)% side. Or you could be unluncky and get a cancer at age N-20. Or you could even die from an unrelated reason, like being hit by a truck.

Comment Re:It could make sense to change the definitions (Score 1) 60

Apologies for the mistaken identity, but why inject yourself into the conversation if you don't care about the point I was trying to make?

You said PTFE should be considered a PFAS, and I agree with you. But I do not want to loose my time on that point. The important point for me is the dangers of PTFE, whatever the classification we use for it.

Comment Re:Never say forever? (Score 1) 60

With half-lives of 2.7-5.3 years for major PFAS compounds (PFOA, PFOS, PFHxS), it would take approximately:

5-7 half-lives (~15-35 years) to reach DuPont's 1991 internal guidelines 10+ half-lives (~30-50+ years) to reach undetectable levels

That assumes you could avoid new PFAS contamination while you slowly excrete them. Since they are everywhere, that does not happen. Cohort studies show PFOA (and PFOS and other friends) contamination just increases with age.

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