Question 1

is a blood b12 level of 1400 too high?

Accepted Answer

No: It is higher than the lab reference range, but it is fine and nothing to worry about.

Question 2

my b12 level is high 980. what's the cause?

Accepted Answer

Supplement too high: High B12 level can be related to taking too much B12 supplements; most of time excess is excreted because being water soluble vitamin.In rare cases, excess B12 supplementation may cause numbness or tingling in the arm, hands and face. 
Excess vitamin B12 may contribute to anxiety symptoms, panic attacks, insomnia, worsen hyperthyroidism, rashes.

Question 3

my b12 level is 962 and my dodctor says this is high.  can this be bad for me?

Accepted Answer

Is normal...: Unless the lab "normals" (at the lab that ran your bloodwork) is atypical, the level of 962 is considered normal and warrants no concern on your part.  B12 deficiency causes anemia, glossitis (tongue inflammation), paresthesias (abnormal sensation), ataxia (lack of muscle coordination). B12 excess is described in animal models and with IV over-feedings but does not constitute disease.

Question 4

why would i have high b12 levels in my blood?

Accepted Answer

High intake: Since vitamins, by definition, are substances that we cannot make ourselves, a high level can only come from high intake.  Vitamin B12 is not very toxic, but in high amounts can cause diarrhea, edema and increase risk of clots.  If you are taking a vitamin B12 supplement, or injections you may want to cut back (discuss with your doctor if you are taking under a doctor's supervision).

Question 5

high level of b12 1900 not taking supplements?

Accepted Answer

: You may be getting supplemental b12 in another food product — for example protein shakes often contain supplemental B12. Either way, this is not dangerous. There is no toxic level of b12. Excess filters out into the kidneys.

Question 6

what causes high vitamin b12 levels?

Accepted Answer

Intake + Absorption: Vitamin b12, aka cyanocobalamin, is common in a huge variety of foods; low intake rare. However, none of us absorb B12 directly. Instead, the cells of the upper ⅔ of the stomach which secrete hydrochloric, hcl, acid also produce & secrete a protein, called intrinsic-factor, which binds b12. The small intestines absorb intrinsic-factor with whatever B12 is bound, & the B12 is thereby also absorbed.

Question 7

what can cause elevated b12 levels?

Accepted Answer

High Vitamin B12: I understand your desire to have good Health.
High levels of vitamin B12 can occur in liver disease such as Hepatitis or Cirrhosis, and some types of Leukemia. 
However, vitamin B12 test is not usually used to diagnose these problems.
In rare cases, high levels may be found in people with Diabetes or who are obese.
See a Physician for Diagnosis, have necessary tests done and follow through.

Question 8

what are common causes of an elevated b12 levels?

Accepted Answer

LAB ERROR: A serum level is not an accurate measurement for b12, which the body can store for up to several in the tissues. Local labs can usually only give us relatively accurate nutritional information about vitamin d and iron. A specialty lab must be used to measure sources other than serum, such as lymphocytic wbcs. Regardless, a high B12 in serum most likely indicates recent exposure or supplementation.

Question 9

i have elevated b12 levels (1, 983). whats this mean?

Accepted Answer

Needs evaluation: If you are taking a lot of B12 then this is not a problem. If you aren't then 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. It is important for you to be evaluated to find the underlying cause. See http://bit.Ly/1hvpcy7.

Question 10

in my last blood test, i have high levels of b12 (950mg). what this mean?

Accepted Answer

Diet high in B12: I am not aware of any disease process that results in high levels of b12.  Most light there is an abundance of B12 in your diet or dietary supplement.

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Doctor answers about:

B12 level too high

A member asked:

Is a blood b12 level of 1400 too high?

A member asked:

My b12 level is high 980. what's the cause?

A member asked:

My b12 level is 962 and my dodctor says this is high. can this be bad for me?

A member asked:

Why would i have high b12 levels in my blood?

A member asked:

High level of b12 1900 not taking supplements?

A member asked:

What causes high vitamin b12 levels?

A member asked:

What can cause elevated b12 levels?

A member asked:

What are common causes of an elevated b12 levels?

A member asked:

I have elevated b12 levels (1, 983). whats this mean?

A member asked:

In my last blood test, i have high levels of b12 (950mg). what this mean?

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