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Vitamin B-12 is naturally found in meat, fish, and other high-protein foods
B.ZoricicI.SeverM.et al (2006)
While oral supplements can be a way to replace B12, oral supplements dont always absorb in the digestive system
coli through a color or fluorescence change and give a clear positive or negative, which is why they are widely used for drinking water
DNA synthesis crucial for repairing nerve cells
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