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A member asked:
What could cause high vitamin b-12 levels in blood? do not take supplements!
A doctor has provided 1 answer
Needs evaluation: I am sorry to tell you that high B12 levels can be a sign of serious health problems including liver ; kidney disease, myelproliferative disorders including leukemia ; polycythemia vera ; hypereosinophilic syndrome. High intake of B12 does not cause these. It is important for you to be evaluated to find the underlying cause. See http://healthyeating.Sfgate.Com/high-vitamin-b12-mean-9057.Htm.
Answered 9/28/2017
4.7k views
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