Is Vitamin B12 350 normal, high or low? What does Vitamin B12 level 350 mean?

📅 Medical Review Date: April 3, 2026

Your Vitamin B12 level of 350 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.

Important - Scroll to the end of this article to see how our patients managed their normal Vitamin B12 levels

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	218.385
5-10 years	226.028
10-15 years	233.939
15-20 years	242.127
20-25 years	250.601
25-30 years	259.372
30-35 years	268.45
35-40 years	277.846
40-45 years	287.571
45-50 years	297.636
50-55 years	308.053
55-60 years	318.835
60-70 years	329.994
70-80 years	341.544
80-90 years	353.498
90-100 years	365.87
>100 years	378.675

*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.

Important - Read more questions about normal Vitamin B12 levels after this video message

Important - At the end of this article read how our patients treated their normal Vitamin B12 levels

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

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

Important - At the end of this article read how our patients treated their normal Vitamin B12 levels

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	218.607
5-10 years	226.488
10-15 years	234.653
15-20 years	243.112
20-25 years	251.876
25-30 years	260.956
30-35 years	270.363
35-40 years	280.11
40-45 years	290.208
45-50 years	300.67
50-55 years	311.509
55-60 years	322.739
60-70 years	334.374
70-80 years	346.428
80-90 years	358.917
90-100 years	371.856
>100 years	385.261

Also Read :Symptoms of Low Vitamin B12

Can Low or High Vitamin B12 cause Heart Problems?

Read on to know how abnormal Vitamin B12 affects heart

Know more

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

Symptoms

Medically Reviewed By

Dr. Hernandez, MD

BOARD CERTIFIED PATHOLOGIST

Laboratory Medicine Specialist

View Full Profile & Credentials →

Laboratory Expertise:

Clinical Pathology Certification
15+ years lab analysis experience
Specializes in test interpretation
Medical Advisory Board Member

Medical Disclaimer: This information is for educational purposes and should not replace professional medical advice. Consult your physician for diagnosis and treatment. Read full disclaimer.