Source record
Serum concentrations of vitamin B12 and folate in British male omnivores, vegetarians and vegans: EPIC-Oxford
A. M. J. Gilsing et al. (2010).
Key findings
- 52% of vegan men had serum B12 below 118 pmol/L in this cross-sectional cohort. Supplement users were not excluded.
Record
- Source type
- Peer Reviewed Study
- Study type
- Cross Sectional
- Topics
- Nutrients to watch
- Geography
- See study or jurisdiction in title
- Funding & conflicts
- Not recorded.
- Source quality
- Moderate evidenceImported from the dated research notes; original-source editorial verification remains pending.
Limitations
- UK men; one threshold; not a population prevalence estimate.
Statistics we use from this source
- 52% of vegan men studiedVegan men with serum B12 below 118 pmol/L in EPIC-Oxford
Claims this source supports
HealthStrong evidence
Vegans need vitamin B12 from supplements or fortified foods; without one, deficiency is common and can cause lasting harm.
Yes. This is the one nutrient a vegan diet cannot supply on its own. A cheap supplement solves it.