Pernicious Anaemia Society
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B Vitamins may protect against air pollution

B vitamins may offer some protection against the impacts of air pollution, a small scale human trial suggests:

"The study shows the very presence of environmental factors like air pollution seems to alter genes in the immune system at the epigenetic level - switching them on or off, and inhibiting our defences.

Researchers had already seen that nutrients could somehow stop this process in animal studies with the chemical Bisphenol A.

Now in this new human trial, an international team of scientists wanted to see if exposure to concentrations of PM2.5 could be mitigated by a daily B vitamin supplement containing 2.5mg of folic acid, 50mg of vitamin B6, and 1mg of vitamin B12."

4 Replies

Glad you posted this interesting information - thank you. Saw it myself but didn 't get around to doing anything .... 😴😴

1 like

Hi Marz

Yes - really interesting. Originally posted by Helvella on the TUK forum.



Yes he does post interesting links and knows his stuff ....


Interesting but very early days

However, the authors caution that their study, while observing a real effect, has many limitations. As well as the small number of participants, there was little information on the size of the B vitamin dose that elicited the response.


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