I'm looking for people who have been long periods as vegans without supplementing (including from fortified foods where possible - in continental Europe, for instance, they don't fortify soy milk and so on).
People who believe in the B12 myth often say something like "oh, you've been X years without B12, but you'll get deficiency in Y more years". Seemingly, they'd go up to 150 years just to not to have to admit they are wrong.
So I'd like to know of vegans who have been 20+ years without supplementing; especially people who were brought up vegan, who would be especially confounding as according to the standard tale they've never consumed B12 in their life.
A viable historic example might be good too. There must be a few strict vegans in history, back in the days when no supplements or fortified food existed.
Thanks for anything you've got.