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Going beyond 500mcg rarely provides additional benefit and may increase the likelihood of mild side effects like headaches or injection site reactions
Monica R
[91] Since only bacteria and some archea possess the genes and enzymes necessary to synthesize vitamin B 12 , plant and algae sources all obtain the vitamin secondarily from symbiosis with various species of bacteria, [5] or in the case of fermented plant foods, from bacterial fermentation
Once reconstituted keep this medicine in a refrigerator between 36F to 46F (2C to 8C)
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