Do you follow a vegan diet? Did you know that vitamin b12 is mainly present in animal based products so those following a strict plant based are more likely to be deficient in vitamin Vegetarians Be Aware Vitamin B12 deficiency can be a Killer!! Kaizen Hospital Vitamin B12 and the Vegan Diet Today's Dietitian Magazine Quick question why do people talk about B12 injections versus ingestible pills? I wish I injections. I do not have the cash for that little backstory. I've been eating vegan style for