This is my question of the day...
We are all suffering horribly. From ignorance, mainly.
Sorry to point it out...
Management of B12, of gut health, of everything that happens to a body relies on holistic, functional medicine. It is not the domain of conventional medicine, e.g. the NHS.
So where does B12 sit in all this? It still makes people anemic, right? That's a blood disease that can be fatal.
But B12 is potentially an anomaly in this case, isn't it? Which other vitamins have the power to devastate the body in this way? I'm not sure I know of one that carries such magnitude.
So we can NEVER expect to get sufficient support, proper healthcare, or even a vague understanding of what we're going through if modern medicine is overlooking nutrition. So what's the solution?
A blend of functional and conventional medicine free at the point of service.
I really can't see any other way through.