Vitamin B12 deficiency causes insomnia and sleep disturbances

the verdict

SUPPORTED

the evidence backs this

Recorded sources

2 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Clinical research indicates an association between low vitamin B12 levels and an increased risk of insomnia symptoms and sleep disturbances, with case evidence showing sleep improvements upon correcting the deficiency.

The analysis

The retrieved literature contains direct observational and case-report evidence linking vitamin B12 deficiency to sleep disturbances and insomnia symptoms, supporting the claim without contradictory findings among the specific papers provided.

Evidence for · 2

Association of Vitamin B12 Levels with Sleep Quality, Insomnia, and Sleepiness in Adult Primary Healthcare Users in Greece.

Recorded source metadata

Bouloukaki I, Lampou M, Raouzaiou KM, Lambraki E, Schiza S, Tsiligianni I. Association of Vitamin B12 Levels with Sleep Quality, Insomnia, and Sleepiness in Adult Primary Healthcare Users in Greece.. 2023. https://doi.org/10.3390/healthcare11233026

This cross-sectional study found that lower vitamin B12 levels were significantly associated with insomnia symptoms among adult primary healthcare users.

Source citation format

See more details

More for · 1

Vitamin D deficiency promoting non-24 h sleep-wake disorder: a case report.

Recorded source metadata

Radlberger RF, Kunz AB. Vitamin D deficiency promoting non-24 h sleep-wake disorder: a case report.. 2023. https://doi.org/10.3389/fneur.2023.1141835

This case report observed that correcting a vitamin B12 deficiency (alongside other deficiencies) helped restore a normal sleep-wake rhythm in a patient experiencing insomnia and sleep-wake disorders.

Source citation format

The paper trail · every fact has a biography

first checked02 Aug 2026

judged → SUPPORTED · 8102 Aug 2026

More receipts

Is it true that Phonological evolution involves regular processes of phoneme elision, vowel nasalization, and tonogenesis?Is it true that Hemangiomas are treatable with medication?Is it true that Research identifies forms of intelligence that diverge from standard IQ measures?

Random receipt →The Trust Wiki →

Anyone with this link can read the claim and its public receipt, including any personal information in that text. Open permanent receipt.

Check your own claim

Challenge the receipt

I have a source that contradicts this verdict I have a source that supports it No source: request a receipt review Requests are recorded for review. This does not start an automatic check or guarantee a response time.

trust me, bro: win the argument, pass the class, survive peer review.

Citation formatting by citeproc-js (Frank Bennett) and the Citation Style Language project. Source and licenses.

This receipt is an automated verdict against our published method · not an opinion about any author or publication.
Terms · Privacy · How verdicts work · Dispute this receipt