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Vitamin B12 is essential for your nerves, red blood cells, and energy levels
It may be difficult to determine the exact time when your vitamin B12 injections have started working, as many people will report noticing a difference in their energy levels within a few days following the shot, and others may not feel the increase in energy for multiple weeks if their body needs the vitamin to build up a bit more
The Importance of Vitamin B12 Vitamin B12, also known as cobalamin, plays a vital role in numerous bodily functions, including red blood cell formation, nerve function, and DNA synthesis
The "cobalamin-intrinsic factor" complex protects cobalamin from destruction until it passes through the small intestine
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