The belief "veganism is natural for humans" is not harmless. There don't seem to be any bioavailable plant-based sources of b12. If you were to live that belief, you can get permanent nervous system damage https://www.vegansociety.com/resources/nutrition-and-health/nutrients/vitamin-b12/what-every-vegan-should-know-about-vitamin-b12
"There is only one reliable test for a B12 source - does it consistently prevent and correct deficiency?"
A more extensive article from former vegan Chris Kresser: https://chriskresser.com/what-everyone-especially-vegetarians-should-know-about-b12-deficiency/
"A study from Tufts University found that 40 percent of people between the ages of 26 and 83 have plasma B12 levels in the low normal range, a range at which neurological symptoms can occur"
Merveilles is a community project aimed at the establishment of new ways of speaking, seeing and organizing information — A culture that seeks augmentation through the arts of engineering and design. A warm welcome to any like-minded people who feel these ideals resonate with them.