B12 Deficiency Symptoms but B12 Level is High

by Jack
(Kiowa, KS)

My B12 level test done by Dr. is 912. I have been on PPIs for 12 years and the last 3 years my feet have been getting more numb by the month as well as tingling and burning at times. It appears to me that I have a serious B12 deficiency but the test doesn't show it. In the meantime I have undergone an MRI on my back, a nerve conduction study, and have had about 9 doctors try to diagnose my symptoms. My B12 has been checked more than once and is always 900 plus.

If I have a B12 deficiency, why do I have a B12 of 900?

Comments for B12 Deficiency Symptoms but B12 Level is High

Click here to add your own comments

MTHFR gene mutation
by: Kerri Knox, RN

Hi Jack,

You almost certainly have an MTHFR Gene Mutation. You're symptoms are pretty classic, of symptoms of B12 deficiency, but a high level despite not taking B12 supplements.

Kerri Knox RN Immune Health Queen

Kerri Knox, RN- The Immune System Queen
Functional Medicine Practitioner
Immune System
Side Effects

PS: If you appreciate the free help that I give on my site, please consider making your next supplement purchase through my Health Store in order to help keep this site in operation.

Blood tests while taking B12
by: Terry

I am currently taking B12. I take 2500 mcg Methylcobalamin every day. Prior to self diagnosing a deficiency I was falling all the time, couldn't think straight, had tongue swelling, and had little or no energy. After reading that these symptoms could be due to a deficiency . . I began taking b12, and almost immediately felt better. My question is this . . . now a new doctor wants to take my B12 levels. I don't see any point in taking them if I am supplementing already. Am I missing something? Could these tests possibly be of any use?

Could be useful
by: Kerri Knox, The Immune System Queen

It could be useful to make sure that you are not still too LOW, but it's likely you will be high and, in that case, it won't be useful.

Click here to add your own comments

Return to Vitamin B12.

Enjoy this page? Please pay it forward. Here's how...

Would you prefer to share this page with others by linking to it?

  1. Click on the HTML link code below.
  2. Copy and paste it, adding a note of your own, into your blog, a Web page, forums, a blog comment, your Facebook account, or anywhere that someone would find this page valuable.


Search this Site
Custom Search


Vitamin D Fact Sheet
Free Vitamin D Fact Sheet by Getting
My Newsletter