Description
Vitamin B12 Test (Cyanocobalamin)
The Vitamin B12 Test measures the level of cyanocobalamin (Vitamin B12) in your blood — a vital nutrient for red blood cell production, brain function, energy metabolism, and nerve health.
Why It’s Done
| Health Benefit | Vitamin B12’s Role |
|---|---|
| Nervous System | Maintains nerve cell health and function |
| Red Blood Cells | Prevents anemia and supports oxygen transport |
| Energy Levels | Aids in energy metabolism and reduces fatigue |
| Brain Function & Mood | Supports memory, focus, and mental clarity |
Vitamin B12 Levels & Interpretation
| Vitamin B12 Level | Interpretation |
|---|---|
| < 200 pg/mL | Deficient – Needs urgent correction |
| 200–300 pg/mL | Borderline – Monitor closely |
| 300–900 pg/mL | Normal – Healthy range |
| > 900 pg/mL | High – Possible over-supplementation |
🧪 Ideal range for most people: 300–800 pg/mL
Levels may vary by lab and individual needs.
Symptoms of Deficiency
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Fatigue or weakness
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Tingling or numbness in hands and feet
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Memory issues or confusion
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Mood swings or depression
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Pale or yellowish skin
Why Choose a Vitamin B12 Test?
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Detect early signs of deficiency
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Prevent nerve damage and anemia
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Monitor vegans, vegetarians, or post-surgery patients
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Track supplementation effectiveness
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Support brain and energy health
Did You Know?
Vitamin B12 is naturally found in animal-based foods like meat, fish, eggs, and dairy. Vegetarians and older adults are more likely to be deficient.
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