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Most people who follow a healthy diet and consume animal products get enough B12, but some people who follow a vegetarian or vegan diet may not get enough B12 from the foods they eat and might benefit from a vitamin B12 supplement
Those substances, Fuller says, are the first trigger your body gets to say, Something is going on here, and I need to respond to it. Follow vaccine developments with our vaccine tracker
For people who dont absorb B12 well, or those whose want to make sure beyond reasonable doubt that theyre getting an ample dose quickly, B12 shots are available via prescription, says Richard Foxx, M.D., a board-certified physician who treats hormonal disorders and nutritional deficiencies
The ideal range of B12 in the human body is typically between 180-1000 picograms per millilitre (pg/mL)