can you have b12 injections while pregnant How Long Does It Take for to Work? can i take vitamin b12

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Vitamin absorption through the bloodstream can be more efficiently utilized by the body, whether by injection into a muscle or infusion directly into the bloodstream

You will need frequent medical tests

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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

Some individuals may have low B12 levels due to dietary patterns or absorption issues