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Divide the target amount by the concentration in each unit
These figures reflect published research conventions rather than clinical guidance, and are provided strictly for research use only
This step is vital for long-term health
At the same time, B12 insufficiency in the liver leads to shrinking of the intestinal cells and malabsorption of nutrients (including B12 itself), leading to a cycle of worsening B12 deficiency
This direct delivery is why the timeline for injections is often measured in days rather than weeks, especially for someone who was deficient
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