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A member asked:
49 yr male b12 vitamin serum result in uk 155 ng/l range 130.00-800.00ng/l why am i not in the middle range 330ng/l ? just curious to this answer!
A doctor has provided 1 answer
Try this reference: There are lots of reasons for B12 deficiency (ref: http://www.nlm.nih.gov/medlineplus/ency/article/003572.htm). Have you any information about your medical history so we can help you learn why your B12 level is down (specifically results of your Schilling test)? B12 can be supplemented orally, by nasal spray, by shot--talk with your doctor about which formulation is appropriate for you.
Answered 5/16/2015
2.8k views
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