> But that produces cyanide when your liver processes it. Very small amounts. I don't see much evidence that people should be scared of cyanocabalamin (smoker

> But that produces cyanide when your liver processes it. Very small amounts. I don't see much evidence that people should be scared of cyanocabalamin (smokers potentially excluded), but of course if it's something you're worried about there are supplements that are based on adenosylcobalamin and methylcolbalamin instead. I'm sure some people will disagree with me on this, but I would not personally recommend going vegan without taking a B12 supplement. Yes, there are fortified foods now, but I sort of feel like it's safer. Honestly, it's something that non-vegans should at least kind of think about as well, since... a non-trivial number of non-vegans are also B12 deficient. But the more straightforward way to sort this stuff out is to just get a blood test and then ask a doctor.