Vitamin D at 5,000 IU Tied to 13% Higher Cognition in 54 Older Adults
Updated
Updated · prohealth.com · Aug 23
Vitamin D at 5,000 IU Tied to 13% Higher Cognition in 54 Older Adults
3 articles · Updated · prohealth.com · Aug 23
Summary
At least 5,000 IU of daily vitamin D was associated with more than 13% higher Montreal Cognitive Assessment scores in 54 older adults with sleep disturbances and early cognitive changes, compared with taking none.
Lower vitamin D doses showed no similar link, suggesting a possible threshold effect rather than a steady dose-response relationship.
D2 and D3 supplements tracked similarly with cognitive scores, while researchers said vitamin D's role in sleep regulation offers a plausible pathway for the association.
The Emory University study, published in Sleep Medicine, was observational and preliminary, so it does not prove vitamin D caused the better cognitive performance.