Vitamin B12Nutrition library
Vitamin B12
Needed alongside folate for red-blood-cell formation and methylation; maternal deficiency can mask or worsen neurological risk.
Tracked by these blood markers
- Serum vitamin B12pmol/L
Trimester focus
| Stage | For the mother | For the baby |
|---|---|---|
| First trimester | Works with folate in the methylation cycle critical to early development. | Required for the developing nervous system from the earliest weeks. |
| Second trimester | Supports the expanding maternal red-cell mass. | Continues supporting myelination and nervous-system maturation. |
| Third trimester | Needs are at their highest given blood volume. | Low maternal B12 here is linked to neurodevelopmental risk. |
Connections
See also
- Serum vitamin B12marker
Target note
Oysters + dairy + eggs (+ liver).