VEGALYSIS

Vitamin B12

Holotranscobalamin (active B12) — optimal range for vegans & vegetarians

B12 bound to transcobalamin and available to tissues.

Optimal range

50–150 pmol/L

How a value is read

Deficient< 35 pmol/L
Below optimal35 – 50 pmol/L
Optimal50 – 150 pmol/L
Above optimal> 150 pmol/L

Bands are given in the marker's canonical unit; values in other units are converted automatically.

Why it matters on a plant-based diet

The active B12 fraction — the earliest and most accurate marker of B12 stores (diagnostic accuracy ~0.92), especially valuable in vegans.

A single marker decides nothing

Deficiencies mask one another: high folate hides low B12, inflammation inflates ferritin, low zinc mimics iron deficiency. VEGALYSIS reads the whole picture and explains the links.

Analyse my labs

Units

  • pmol/L

VEGALYSIS accepts any of these units and converts the value to the canonical one.

Names seen on lab reports

holotc · holotranscobalamin · active b12 · active-b12 · голотранскобаламин · активный b12

Sources

Related markers

Educational material; not a substitute for a clinician's advice.