Is Vitamin B12 104 low, normal or dangerous? What does Vitamin B12 level 104 mean?

📅 Medical Review Date: October 12, 2025

Your Vitamin B12 level of 104 is a Low Vitamin B12 level.

A vitamin B12 level of 104 pg/mL usually means the body has low vitamin B12 stores. It suggests B12 deficiency. Low levels of vitamin B12 can cause fatigue, weakness, pale skin, shortness of breath, numbness in hands and feet, balance problems, and memory issues. This can be caused by pernicious anemia, vegetarian diet, Crohn's disease, or gastric surgery. Further tests are often needed to identify the cause and guide appropriate treatment.

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	213.194
5-10 years	215.411
10-15 years	217.651
15-20 years	219.915
20-25 years	222.202
25-30 years	224.513
30-35 years	226.848
35-40 years	229.207
40-45 years	231.591
45-50 years	234
50-55 years	236.434
55-60 years	238.893
60-70 years	241.377
70-80 years	243.887
80-90 years	246.423
90-100 years	248.986
>100 years	251.575

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

Misdiagnosis is more common than people think—and the consequences can be serious. Delayed treatment, unnecessary medication, or worse. If you want a second opinion on your blood work, one option is to upload it to a site like wholebodyprotocol.com, where world-class doctors review your results. They charge a small fee—around $90 (though you'll want to check the latest price as it fluctuates)—and email you a detailed report. With over 12 million people affected by misdiagnosis every year, that little bit of extra peace of mind can go a long way.

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

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

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	213.26
5-10 years	215.544
10-15 years	217.853
15-20 years	220.187
20-25 years	222.546
25-30 years	224.93
30-35 years	227.339
35-40 years	229.774
40-45 years	232.235
45-50 years	234.723
50-55 years	237.237
55-60 years	239.778
60-70 years	242.347
70-80 years	244.943
80-90 years	247.567
90-100 years	250.219
>100 years	252.899

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