Vitamin B12: what the evidence actually shows
Reviewer and governance status are shown on each atomic claim below.
What it is
Vitamin B12 is tracked as a health intervention in this evidence graph. Also known as: cobalamin.
Studied forms and doses
No form-specific catalog record is available. This does not mean all forms are equivalent.
- energy / fatigue: RDA-to-high oral; form not reported.
Mechanisms
Mechanistic plausibility is context, not proof that a clinical outcome improves.
No structured mechanism is recorded.
⚠ Safety in context
No interaction record is modeled for this intervention. This is an unknown coverage state, not evidence that no interaction exists.
Products and verification
No product label snapshot is mapped in this released catalog. Ingredient evidence does not establish any bottle’s identity, potency, purity, availability, or value.
Evidence by outcome
People say · Evidence shows
“B12 shots give you energy”
Grade history
- C → CCorrection by Claude (gold-standard provenance sweep): live Postgres source drift replaced with the verified seed source set [pmid-33809274] details →
Re-review cadence: every 6 months (Grade C+) · next scheduled by · methodology v1.
By outcome — the money pages
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Cite this page
Citation is encouraged. The proposed reuse license is CC-BY-4.0; status: pending-governance-ratification.
Plain-text citation
Substrate. Vitamin B12: what the evidence actually shows. https://evidencebased.info/interventions/b12. Updated 2026-07-16.
BibTeX
@misc{substrate_infointerventionsb12,
author = {Substrate editorial},
title = {Vitamin B12: what the evidence actually shows},
year = {2026},
url = {https://evidencebased.info/interventions/b12},
note = {evidencebased.info}
}