GGreen wrote:Some writers tell you can only obtain it from animals products and only the B12 from animal products is absorabable by the body.
Others tell you can obtain it from none animals products but that form is not absorbable by the body and it may even block the absorption of the real B12.
So, What is the truth?
The reason it's controversial is because you can make a simple statement like that, which, at face value, makes veganism look dangerous. There are so many stories of people, like SeaSiren pointed out, where people don't use supplements and don't need to supply B12. I'm sure BigBwii doesn't use them either and he keeps on trucking with no problem.