Gender-specific effects of vitamin D and B9 levels on neuroticism: a study utilizing polygenic scoring - Scorecard - MDSpire

Gender-specific effects of vitamin D and B9 levels on neuroticism: a study utilizing polygenic scoring

  • By

  • Margarita Alfimova

  • Vera Golimbet

  • Ekaterina Semina

  • Yulia Chaika

  • April 24, 2026

  • 0 min

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Clinical Scorecard: Gender-specific effects of vitamin D and B9 levels on neuroticism: a study utilizing polygenic scoring

At a Glance

CategoryDetail
ConditionNeuroticism, a personality domain linked to emotional stability and mental health
Key MechanismsGenetic propensity for vitamin D and B9 levels influencing neuroticism differently by sex; vitamin D as a neurosteroid affecting brain function; vitamin B9's role in methylation and neuroprotection
Target PopulationHealthy adults, with sex-specific analysis (men and women)
Care SettingNonclinical, research and public health policy contexts

Key Highlights

  • Vitamin B9 polygenic scores negatively associated with neuroticism in women, suggesting a protective effect on emotional stability.
  • Vitamin D polygenic scores positively associated with neuroticism in men, particularly linked to excitability-related traits.
  • Neuroticism in men correlated with genetic risk for bipolar disorder type 1 and alcohol use disorders, not with neuroticism polygenic scores.

Guideline-Based Recommendations

Diagnosis

  • Consider genetic and vitamin status factors when assessing neuroticism variability.
  • Use polygenic scoring as a research tool to explore vitamin-related genetic influences on neuroticism.

Management

  • Address vitamin B9 sufficiency in women as a potential modifiable factor for emotional stability.
  • Investigate vitamin D levels in men with high neuroticism and excitability traits for targeted interventions.

Monitoring & Follow-up

  • Monitor vitamin D and B9 status in populations at risk for high neuroticism, considering sex-specific effects.
  • Track neuroticism and related mental health outcomes in relation to vitamin status over time.

Risks

  • Vitamin deficiencies may contribute to increased neuroticism and associated mental health risks.
  • Sex differences in vitamin effects imply that uniform supplementation strategies may be ineffective or inappropriate.

Patient & Prescribing Data

Healthy adults stratified by sex

Vitamin B9 supplementation may benefit emotional stability in women; vitamin D's role in men requires further investigation before clinical recommendations.

Clinical Best Practices

  • Incorporate assessment of vitamin D and B9 genetic predispositions in research on neuroticism.
  • Recognize sex-specific biological pathways influencing neuroticism when designing interventions.
  • Promote vitamin sufficiency as a modifiable environmental factor in mental health strategies.

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