Right, I should probably have written RDI or DV (or DRI?). Doses improved, but in Germany, I can still find multivitamins marketed specifically at vegetarians and vegans with 10ug of B12 (labeled as 400%) in the supplement aisles of supermarkets.

Even in pharmacies, I have to tell that the supplement may be my only source of B12 and that I know about the dosing. I reduce the frequency when I have other sources like toothpaste. I think it is worth to RTFM for something that is relevant for the rest of my life.