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Description
Vitamin B12 is a water-soluble nutrient involved in hundreds of essential bodily functionsfrom energy production and nervous system support to red blood cell formation

Your physician will assess through medical and dietary history

Acknowledgements This work was supported by the National Key Research and Development Program of China 202lYFA1000200 and 2021YFA1000203 (YL

Therefore, if you have recently changed your diet, become vegan, and stopped consuming B12-rich foods, it may take several years for a deficiency to become apparent, and dietary supplementation might be an adequate solution over any need for B12 injections