What is the reasons that a blood test shows high levels of B12?

This question comes up all the time.   But,…. why does someone have the symptoms of a B12 deficiency but is told that they have the high levels of B12 in their test results.

There are many reasons including you might have a functional B12 deficiency.

I wrote this article awhile ago as I constantly got asked about it.    So, instead of fretting, find out what this means and what you can do.

What does it mean when your blood test shows High B12 Levels?