Alternative format for vitamin b12 high strength 2000mcg suitable for vegetarians vegans and kosher liquid vitamin b12 2000 g with b complex is a naturally occurring b complex vitamin that promotes the health of the nervous system and healthy blood cell formation and supports energy metabolism vitamin b12 is naturally found in fish dairy produce organ meats beef pork nuts and seeds and is a water soluble vitamin vitamin b12 contributes to normal energy yielding metabolism and