Just to be clearer on the B₁₂ point, it is possible to get B₁₂ from vegan sources, but not readily from vegetables or other plants. Vegan B₁₂ comes from culture

Just to be clearer on the B₁₂ point, it is possible to get B₁₂ from vegan sources, but not readily from vegetables or other plants. Vegan B₁₂ comes from cultured micro-organisms, and vegans who don't supplement it will generally be deficient, as I was.