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For researchers who want to optimize every milligram, especially when using expensive 20mg and 30mg vials, investing in low-dead-space syringes pays for itself
If all goes smoothly and your stomach acids to free up the B12, it can then attach to a protein called intrinsic factor, which facilitates B12s absorption into the bloodstream
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A: For adults over 40, injection delivery bypasses the gut absorption limitations that affect oral B12 supplements, particularly for those with reduced stomach acid production that is common with age
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