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(85 g) provides 93% of the DV (22,27)
Frontiers in Public Health , 8, 550753.
If you have normal B12 levels, an injection is unlikely to make you feel noticeably different
This higher dose can be administered as a single 100mg injection in the morning or split into two 50mg doses taken 12 hours apart (morning and afternoon)
Oral B12 Supplementation Injectable Vitamin B12 has big advantages over taking it by mouth
If you have an MTHFR mutation you are a candidate for B12 shots
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