Vitamin B12
Screens for B12 deficiency, a common and reversible cause of fatigue, neurological symptoms, and certain anemias.
What it measures
Inside the Vitamin B12
- labs
Serum vitamin B12
Who it's for
Who should consider this
- check
Patients with fatigue or neurological symptoms
- check
Vegetarians and vegans
- check
Anyone screening for certain anemias
Good to know
Before you test
This is general clinical context — not medical advice. Your physician determines whether Vitamin B12 is appropriate and interprets your results.
- info
No fasting required
- info
A reversible cause of fatigue when low
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View lab arrow_outwardNot sure if this panel is right for you?
A licensed Allora physician will review your goals, history, and symptoms before recommending any lab work.