Emory Study Links 5,000-IU Vitamin D Dose to 13% Higher Cognition in 54 Sleep-Disorder Patients
Updated
Updated · 매일경제 · Aug 23
Emory Study Links 5,000-IU Vitamin D Dose to 13% Higher Cognition in 54 Sleep-Disorder Patients
3 articles · Updated · 매일경제 · Aug 23
Summary
Adults with sleep disorders and mild cognitive impairment who took at least 5,000 IU of vitamin D daily scored more than 13% higher on cognitive tests than nonusers in an Emory University study.
The analysis covered 54 participants with an average age of 67.2 and used the Montreal Cognitive Assessment; the association held after adjusting for age, sex, BMI and education.
Lower doses under 5,000 IU showed no cognitive advantage, and researchers also found no clear difference between vitamin D2 and D3.
The findings, published in Sleep Medicine, are observational rather than a clinical trial, so they do not prove high-dose vitamin D improves memory.
Researchers said 5,000 IU exceeds recommended intake and should not be adopted casually, calling for larger studies to test whether supplementation can truly slow cognitive decline.