Serum vitamin D levels in patients with Bell's palsy: a systematic review and meta-analysis.

What It Covers

The paper reports a study of Vitamin D, K2, Magnesium and Zinc in the context of bell's palsy, published as a meta-analysis.

The primary pathophysiological mechanism leading to BP is recognized as the confinement of the facial nerve within the facial canal, caused by edema.

The link between vitamin D and neurological disorders has drawn more scientific attention in recent years, and vitamin D plays a role as a neuro-immuno-modulator.

Who the Included Studies Covered

The inclusion criteria for this meta-analysis encompassed articles that reported serum vitamin D levels and vitamin D deficiency in patients with BP, compared with the control group, specifically those presenting original data from cross-sectional, case-control, and cohort studies.

Vitamin D levels in BP patients were reported as mean ± SD.

How the Review Was Done

A comprehensive search was conducted across Scopus, PubMed, and Web of Science databases for articles published from inception until September 29, 2024.

What Was Measured

The primary pathophysiological mechanism leading to BP is recognized as the confinement of the facial nerve within the facial canal, caused by edema.

This systematic review aims to critically assess the relationship between vitamin D levels and the severity of BP.

PubMed files the paper under topics including Bell Palsy, Vitamin D and Vitamin D Deficiency.

The authors tagged it with the keywords 1,25-dihydroxy vitamin D, Bell’s palsy (BP) and Facial paralysis.

What This Means in Plain Language

This is a meta-analysis of Vitamin D, K2, Magnesium and Zinc in people with bell's palsy.

Its findings take up roughly 7 sentences of the abstract and are left out here on purpose; the source paper is the place to read them.

The publication is from 2025 (BMC neurology), a journal based in England.

More context: the Vitamin D, K2, Magnesium and Zinc compound page, Bell's palsy research.