vitamin b12

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    Injectable vitamin B12 experiences

    We all know vitamin B12 declines with age, and that the bioavailability of oral is horrible. So I recently got my hands on some injectable vitamin B12 dosed at 1000mcg/ml just to try it out. My blood work shows I'm in the mid-range at 450 (reference range 200-700), but I would like to have my...
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