@EllieK
This is a simpliciativ world view. First.of all, I am actually vegan.
Second, anecdotal evidence is no evidence. That is where studies help, Thai study does not say mich as explained before.
If you prefer conspiracy, go for it. But neither food industry nor "Pharma" would be much phased by this study, even if there was more evidence to it.
And if that is your level,.are you sure.it is not rigged by the B12 supplement Industry? This is bonkers.