Taking 1000mcg (1mg) methylcobalamin orally on an empty stomach is not dangerous or like prescribing drugs.
The new acceptable low is 400pg/ml. Since methylcobalamin is OTC you can do this yourself and it is not even expensive at pennies a day.
Many doctors remain clueless about this subject.
https://www.youtube.com/watch?v=BvEizypoyO0
and
this link is for doctors continuing education, and was put up in 2003
http://www.aafp.org/afp/2003/0301/p979.html
Print it out and give it to your doctor.
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All truths are easy to understand once they are discovered; the point is to discover them.-- Galileo Galilei
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Weezie looking at petunias 8.25.2017
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