>>(Eating a lot of high-mercury deep-sea fish also seems to have a negative effect on formaldehyde levels.)

I started out thinking that by 'negative' you meant 'reduce' - so white albacore becomes a win-win (omega-3 + reduce formaldehyde/formalin)

But on reading the study, I see I got that 100% wrong.

From the study

>>...inorganic Hg formed by MeHg demethylation in mouse liver stimulated the endogenous formaldehyde production

(italics mine)

Putting this here as some other folks probably were jumping to the same conclusion.

Interesting that converting MeHg is converted to Hg as part of getting rid of MeHg.

Back when I was in HS, I had several Kg of mercury (long story involving science project, MHD, and plasma safety) which I had plenty of skin contact with. AFAICT no effects, short or long term. Even if some got through my skin, the lack of demethylation might explain the lack of bad effect.

Thanks so much for the daily dose of interesting studies to dig into. :-)