B12 isn't made by animals nor plants. The safest way to consume B12 is via supplements and fortified foods. Watch this video by Dr. Greger for more info https:

B12 isn't made by animals nor plants. The safest way to consume B12 is via supplements and fortified foods. Watch this video by Dr. Greger for more info https://www.youtube.com/watch?v=mA3XjalOkXM https://www.youtube.com/watch?v=mA3XjalOkXM