Hi all. Read a comment on this page saying B12 Injections aren't vegan. Is this true? I've had quite a few done in the past and prefer getting injections because I forget Vitamin B12 Vegetarian Society Vegetarians and Vegans Do you know your diet may be low in Vitamin B12? Vitamin B12 is usually found in meat, eggs, milk, and cheese. Here's a quick guide: Vitamin B12 Sources Absorption Supplements & Deficiency The B12 Shot: What Every Human Needs to Know About Injectable Vitamin B12