The correlation between vitamin B12 serum levels and migraine: a case-control study
Abstract
ABSTRACT Objectives Migraine represents the prevailing form of primary headache with no fully described etiology and pathophysiology. This study aimed to assess the association between vitamin B12 serum levels and both chronic and episodic migraine. Patients and methods This study was conducted as a case-control study, including 90 migraineurs, divided into 48 with episodic migraine and 42 with chronic migraine as the case group, and 90 matched healthy participants as the control group. The serum level of vitamin B12 was measured using enzyme-linked immunosorbent assay (ELISA) for all subjects. Its association with the Migraine Disability Assessment (MIDAS) scale and migraine attack severity, measured using the Visual Analog Scale (VAS), was analyzed. Results Migraineurs exhibited a notable reduction in serum vitamin B12 levels compared to the control group (243.97 ± 124.85 pg/ml vs. 302.69 ± 143.69 pg/ml, p = 0.014). Furthermore, chronic migraine patients had significantly lower serum vitamin B12 levels when compared to episodic migraine patients (202.7 ± 75.62 pg/ml vs. 269.17 ± 143.31 pg/ml, p = 0.026). A significant negative correlation was found between serum vitamin B12 levels and the severity of migraine attacks, as measured by the VAS (r = -0.407, p = 0.036). Conclusion The current study highlighted that vitamin B12 deficiency is highly associated with migraine and its severity. Further interventional research is highly recommended to investigate the potential…
How strong is the evidence?
Evidence Hub reads this as a case-control, done in people. Its evidence level is 4 of 5 (Low · observational). Observational designs can show an association but not prove cause. Reported size: 90 participants or records.
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