Is Vitamin B12 340 normal, high or low? What does Vitamin B12 level 340 mean?

📅 Medical Review Date: April 29, 2026

Your Vitamin B12 level of 340 is a Normal Vitamin B12 level.

Normal Vitamin B12 levels may indicate underlying health problems. The normal range is typically between 211 pg/mL and 911 pg/mL. If your levels are outside this range, it's important to speak with a healthcare provider. Consulting a doctor is recommended to determine the cause and appropriate next steps.

The normal Vitamin B12 range for men is :211 - 911 pg/mL

Ideal values of Vitamin B12 depending on age (male) :

Age	Ideal Vitamin B12 value
<5 years	218.174
5-10 years	225.592
10-15 years	233.262
15-20 years	241.193
20-25 years	249.394
25-30 years	257.873
30-35 years	266.641
35-40 years	275.707
40-45 years	285.081
45-50 years	294.774
50-55 years	304.796
55-60 years	315.159
60-70 years	325.874
70-80 years	336.954
80-90 years	348.41
90-100 years	360.256
>100 years	372.505

*Ideal values are calculated based on our database of patient records

Get Advice via Email : Send us your blood test report, and our Vitamin B12 experts will review it. You'll receive a detailed analysis and personalized treatment guidance via email within 12 hours. If you have additional blood test results besides Vitamin B12, please include those too—an accurate diagnosis often requires a full view of all abnormalities. Upload blood test report now

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Some examples of conditions that increase or decrease Vitamin B12 levels include:

• Crohn disease
• Ulcerative colitis
• Celiac disease
• Reduced stomach acid production
• Pancreatic insufficiency

Receive world-class medical opinion about your normal Vitamin B12 levels over email.Upload blood test report now

Normal range of Vitamin B12 found among women :211-911 pg/mL

Ideal values of Vitamin B12 depending on age (female) :

Age	Ideal Vitamin B12 value
<5 years	218.389
5-10 years	226.037
10-15 years	233.953
15-20 years	242.146
20-25 years	250.626
25-30 years	259.403
30-35 years	268.487
35-40 years	277.889
40-45 years	287.621
45-50 years	297.693
50-55 years	308.118
55-60 years	318.908
60-70 years	330.076
70-80 years	341.635
80-90 years	353.599
90-100 years	365.982
>100 years	378.799

If you take a Vitamin B12 blood test and the results are not in the normal range (211-911 pg/mL), your physician may recommend more tests to figure out the problem. You might also get this test if your physician thinks you have some other disease.

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How the Vitamin B12 Test Is Done :

When your doctor orders a Vitamin B12 test, it involves a straightforward blood draw to measure your Vitamin B12 levels. A pathologist or lab technician will take a small sample of blood from a vein using a needle. Your Vitamin B12 test results are usually available within a few hours.

Medical References

• WebMD – Vitamin B12 Blood Test: Uses, Normal Range, and Results
• NIH – Vitamin B12 - Health Professional Fact Sheet
• MedlinePlus – Vitamin B12 level