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30 votes
3 answers
14k views

Where does the B12 in vitamin supplements come from?

I know that many animal products contain vitamin B12 and that it's very hard or even impossible to get enough from plant-based food. There are supplements which vegans should take. But what are these ...
Den's user avatar
  • 976
10 votes
1 answer
168 views

When taking B12 supplements, is it a viable strategy to take higher dose every few days as opposed to lower dose every day?

As a recently converted vegan, I first wanted to try out not taking B12 supplements to see if I can get the recommended RDA from fortified foods alone. This turned out to be rather hard and I average ...
Alexander Rossa's user avatar
24 votes
1 answer
310 views

Different types of B12?

I've realized that there are different types of B12 supplements. Most of them are from Cyanocobalamin, but there are also from Methylcobalamin. Does anybody know the differences or what is the best ...
David's user avatar
  • 477
8 votes
2 answers
204 views

Can too much B12 be harmful?

While I know that B12 is water-soluble vitamin and (as I understand it) it should be naturally expelled from the body, is this really the case even with continuously high intakes, eg. 1000mcg/day for ...
Alexander Rossa's user avatar
6 votes
2 answers
80 views

How to identify a vegan supplement?

If I am considering supplements to balance my dietary intake, how do I identify if they are vegan? To clarify, if I have altered my diet to eliminate eating animals, how can I be sure that my ...
James Jenkins's user avatar