HealthCareMagic is now Ask A Doctor - 24x7 | https://www.askadoctor24x7.com

Get your health question answered instantly from our pool of 18000+ doctors from over 80 specialties
159 Doctors Online

By proceeding, I accept the Terms and Conditions

Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

HCM Blog Instant Access to Doctors
HCM BlogQuestions Answered
HCM Blog Satisfaction

Do I Need To Be Worried About The High Level Of B12?

I recently had a routine checkup (52-y-o male) with standard blood work. I got a call from the doctor s office that everything was good on the blood work. I had requested the results be sent to me. A few days later I got them, and everything was within the normal range (magnesium was literally on the lower edge of the range), except my B12 levels, which were incredibly high. I had 1703 pg/mL, and normal was given as 243-894. I take a B12 supplement (at my doctor s suggestion a few years ago), but understand that supplements do not affect blood serum levels. I came across a Dec. 2013 study from Denmark (Arendt et al.) that showed high B12 levels associated with an increased risk of certain cancer diagnoses in subsequent years, primarily the first year after the high level was noted. Something like 6-7% of those with high levels had cancer detected in the next year. My question is, should I follow up with anything despite no apparent concern from my doctor?
Fri, 11 Apr 2014
Report Abuse
  User's Response
HI
Thank for asking to HCM
I really appreciate your concern the vitamin B12 can not synthesized in the blood of human being & for the vitamin 12 one has depends upon the dietary supplement of vitamin B12 the level can only be increased if you take extra supplement of it (pharmacological preparation) or if you eat Vitamin B12 fortified food consistently but still the amount would not exceeds that much, more over the toxicity of this vitamin is very low, certain bacterial infection condition some time increase the amount of vitamin B12 but this argument is highly controversial, hope this information helps you, have a good day.
I find this answer helpful

 1 user finds this helpful


Note: For further follow up on related General & Family Physician Click here.
Disclaimer: These answers are for your information only and not intended to replace your relationship with your treating physician.
This is a short, free answer. For a more detailed, immediate answer, try our premium service [Sample answer]
Share on
 

Related questions you may be interested in


Recent questions on Vitamin b12


Loading Online Doctors....
Do I Need To Be Worried About The High Level Of B12?

HI Thank for asking to HCM I really appreciate your concern the vitamin B12 can not synthesized in the blood of human being & for the vitamin 12 one has depends upon the dietary supplement of vitamin B12 the level can only be increased if you take extra supplement of it (pharmacological preparation) or if you eat Vitamin B12 fortified food consistently but still the amount would not exceeds that much, more over the toxicity of this vitamin is very low, certain bacterial infection condition some time increase the amount of vitamin B12 but this argument is highly controversial, hope this information helps you, have a good day.