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Many foods are fortified with artificial vitamin B12, such as non-dairy milks and cereals, but these are not always optimally absorbed, so vegans must still be proactive about making sure they are not becoming deficient
Research continues to focus on the use of permeation enhancers or permeation absorbers in combination with the treatment
But the technique still matters: the needle has to reach muscle, the site has to be clean, and the dose has to be right
Cyanocobalamin pills are available upon prescription
New York Times
Do not oxidize the disulfide , avoid contact with reducing agents (cysteine, glutathione, DTT)
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