Doctors warn vegans to take risks of vitamin B12 deficiency seriously Veganism The Guardian Vegan Vitamin B12 PlantFusion 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 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 Vitamin B12 2000ug Vegan B12 Supplement DR.VEGAN Vitamin B12 for Vegans: Methylcobalamin vs Cyanocobalamin.