what dosage injectable b12 VITAMIN INJECTION Optimal Vitamin B12 Dosage and
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Thus, the EFSA set an AI of 4.0 g per day

doi:10.1146/annurev.nutr.19.1.217

Well, anything that isnt listed above but do keep a watchful eye out for this type of B12: Cyanocobalamin Cyanocobalamin requires activation by the body and is not as readily available as the other forms listed above

Therefore, total serum B12 may be high, but active B12 (holotranscobalamin) may be normal
