Is Vitamin B12 205 low, normal or dangerous? What does Vitamin B12 level 205 mean?

📅 Medical Review Date: January 19, 2026

Your Vitamin B12 level of 205 is a Low Vitamin B12 level.

Low 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	215.326
5-10 years	219.74
10-15 years	224.245
15-20 years	228.842
20-25 years	233.533
25-30 years	238.32
30-35 years	243.206
35-40 years	248.192
40-45 years	253.28
45-50 years	258.472
50-55 years	263.771
55-60 years	269.178
60-70 years	274.696
70-80 years	280.327
80-90 years	286.074
90-100 years	291.939
>100 years	297.924

*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 low 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	215.455
5-10 years	220.004
10-15 years	224.649
15-20 years	229.392
20-25 years	234.236
25-30 years	239.182
30-35 years	244.232
35-40 years	249.389
40-45 years	254.655
45-50 years	260.032
50-55 years	265.523
55-60 years	271.13
60-70 years	276.855
70-80 years	282.701
80-90 years	288.67
90-100 years	294.765
>100 years	300.989

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