Thread: B12
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Old 01-21-2014, 08:11 AM
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mrsD mrsD is offline
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mrsD mrsD is offline
Wisest Elder Ever
mrsD's Avatar
 
Join Date: Aug 2006
Location: Great Lakes
Posts: 33,508
15 yr Member
Lightbulb
A nice high level of B12 in the blood means it will more easily pass
into the spinal cord and brain, as this is dependent on serum availability. Low serum means low cerebrospinal fluid levels.

Most people using 1mg -5mg daily orally should get at least to
1000pg/ml. Most hospitals and labs do not calibrate higher than 2000... so getting really high is not easily measurable at most labs.
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