Vitamin B9 and Reduced Cognitive Function

• A Retrospective Study of the Association between Low Vitamin B1 in the Blood and Cognitive Impairment in Patients with Alzheimer's Disease.

  • 2025-10-31
  • Observational
  • Journal of nutritional science and vitaminology 71(5)
  • • Yuji Higaki
    • Yu Kobayashi

  • PubMed: 41183968
  • DOI: 10.3177/jnsv.71.421

  1 Insight on

  • Reduced Cognitive Function

  • Low evidence
  • Clinical

  VB12 and folate levels showed no clear association with cognitive function.

  Effect

  Neutral

  Effect size

  Small

  Significant

  No