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Your body uses vitamin B12 to make red blood cells, nerves, DNA and protein
For detailed information, consider reading reliable sources such as Health Overview on Wikipedia to understand more about vitamin B12 and its benefits
The Price of Vitamin B12 Injections We know cost matters when making health decisions
Note that these two documented starting doses are worlds apart in size 150 mcg versus 2.5 mg is a roughly 17-fold difference
Published literature can inform starting ranges for related experimental designs
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