Market 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 Vegetarian Sources of B12: Foods, Deficiency Signs & UK Guidance Bolt Pharmacy B12 Supplement Best Vegan B12 Supplement USA When following a plant based diet, it is difficult to get all the vitamins you need. Vitamin B12 is a common deficiency amongst vegans. Here are some foods high in Vitamin B12