[CWIZO]

40% of the population is B12 deficient: https://eatingourfuture.wordpress.com/science-studies-vegan-...

So most people should supplement, not just vegans.

[yladiz]

This directly contradicts the Wikipedia article on the subject [1], and in general the page you link looks more like pseudoscience than not. Do you have a better source, maybe from a published paper or the NIH?

1: https://en.m.wikipedia.org/wiki/Vitamin_B12_deficiency

[tpush]

Presumably referring to this sentence from the Wikipedia page you linked to, quote: "Marginal deficiency is much more common and may occur in up to 40% of Western populations.".